Help Guides

The Charterhouse Aquatics Help Guides Blog provides comprehensive and practical advice on maintaining aquariums, offering expert tips, step-by-step guides, and product reviews to ensure a healthy and thriving aquatic environment for hobbyists and professionals alike.

Do You Really Need an Aquarium Chiller? 10 Situations Where the Answer Is Yes
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Do You Really Need an Aquarium Chiller? 10 Situations Where the Answer Is Yes

Not every aquarium needs a chiller, but some definitely do. Discover 10 situations where an aquarium chiller is the best investment for protecting your fish, corals and other aquatic life...

What Temperature Should Your Aquarium Be? Freshwater & Marine Temperature Guide
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What Temperature Should Your Aquarium Be? Freshwater & Marine Temperature Guide

Not sure what temperature your aquarium should be? This complete guide covers the ideal temperature ranges for freshwater and marine aquariums, including tropical fish, Goldfish, reef tanks, shrimp and Axolotls,...

10 Signs Your Aquarium Is Overheating (And What To Do Immediately)
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10 Signs Your Aquarium Is Overheating (And What To Do Immediately)

Is your aquarium getting too hot? Learn the 10 warning signs of overheating, discover emergency cooling tips and find out when it’s time to use an aquarium cooling fan or...

Aquarium Chiller vs Cooling Fan: Which Is Right for Your Aquarium?
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Aquarium Chiller vs Cooling Fan: Which Is Right for Your Aquarium?

Not sure whether to buy an aquarium cooling fan or a chiller? Compare the pros, cons, costs and cooling performance of both solutions to find the best way to keep...

Heatwave Survival Guide: How to Keep Your Aquarium Cool During Hot Weather
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Heatwave Survival Guide: How to Keep Your Aquarium Cool During Hot Weather

Hot weather can quickly overheat your aquarium and stress your fish. Discover practical ways to keep your freshwater or marine aquarium cool during a heatwave, including emergency cooling tips, cooling...

30 Aquarium Fish You Should Never Keep Together
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30 Aquarium Fish You Should Never Keep Together

Not all aquarium fish are compatible. Discover 30 fish combinations you should never keep together, learn why they don’t work and find better alternatives for building a peaceful, thriving aquarium.

Freshwater Fish Size Guide: How Big Do Popular Aquarium Fish Really Get?
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Freshwater Fish Size Guide: How Big Do Popular Aquarium Fish Really Get?

Wondering how big aquarium fish really grow? This complete freshwater fish size guide covers the adult size of popular aquarium species, helping you choose the right fish for your tank...

25 Common Beginner Aquarium Mistakes (And How to Avoid Them)
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25 Common Beginner Aquarium Mistakes (And How to Avoid Them)

Starting your first aquarium? Discover the 25 most common beginner fishkeeping mistakes and learn how to avoid them for a healthier, happier aquarium and thriving fish.

The Ultimate Aquarium Compatibility Guide
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The Ultimate Aquarium Compatibility Guide

Choosing compatible fish is the key to a successful aquarium. Learn which freshwater species live well together, discover compatibility tips, stocking ideas and avoid common mistakes with this complete aquarium...

15 Aquarium Fish That Clean Your Tank (And What They Actually Clean)
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15 Aquarium Fish That Clean Your Tank (And What They Actually Clean)

Looking for aquarium fish that help keep your tank clean? Discover 15 of the best algae eaters, bottom dwellers and clean-up fish, and learn exactly what they do—and don’t—clean in...

10 Best Freshwater Shrimp for Beginners
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10 Best Freshwater Shrimp for Beginners

Thinking about keeping freshwater shrimp? Discover the 10 best beginner-friendly shrimp species, learn how to care for them and find out which shrimp are best for planted aquariums, community tanks...

Aquarium Snails Explained: The Best Snails for Every Aquarium
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Aquarium Snails Explained: The Best Snails for Every Aquarium

Thinking about adding snails to your aquarium? Discover the best freshwater snail species, learn how they help control algae and leftover food, and find out which snails are right for...

10 Best Freshwater Fish That Stay Small
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10 Best Freshwater Fish That Stay Small

Discover 10 of the best freshwater fish that stay small. From colourful nano fish to peaceful community species, this guide includes care tips, tank sizes and compatibility advice to help...

15 Most Colourful Freshwater Fish You Can Keep
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15 Most Colourful Freshwater Fish You Can Keep

Looking for vibrant freshwater fish? Discover 15 of the most colourful species you can keep, complete with care tips, aquarium size recommendations and compatibility advice to help you create a...

15 Best Community Fish for Peaceful Aquariums
20 Best Tropical Fish for Beginners (With Pictures & Care Tips)
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20 Best Tropical Fish for Beginners (With Pictures & Care Tips)

Looking for your first tropical fish? Discover 20 colourful, hardy and beginner-friendly species, complete with care tips, tank size recommendations and compatibility advice to help you build a thriving community...

Freshwater Aquarium Accessories Explained: Complete Buyer’s Guide
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Freshwater Aquarium Accessories Explained: Complete Buyer’s Guide

Learn about the most useful freshwater aquarium accessories including thermometers, fish feeders, air stones, breeding boxes, nets and maintenance tools. Discover how the right accessories can improve aquarium health and...

Freshwater Aquarium Maintenance Explained: Complete Care Guide
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Freshwater Aquarium Maintenance Explained: Complete Care Guide

Learn how to maintain a freshwater aquarium with water changes, filter cleaning, substrate care, algae control and water testing. A complete maintenance guide for healthy fish and crystal-clear water.

Freshwater Aquarium Decoration Explained: Complete Aquascaping Guide
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Freshwater Aquarium Decoration Explained: Complete Aquascaping Guide

Learn how to decorate a freshwater aquarium with rocks, wood, plants and ornaments. Discover aquascaping tips, decoration ideas and how to create a beautiful, fish-friendly aquarium.

Freshwater Aquarium CO₂ Explained: Complete Beginner's Guide
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Freshwater Aquarium CO₂ Explained: Complete Beginner's Guide

Carbon dioxide (CO₂) supplementation is one of the most effective ways to improve plant growth in a freshwater aquarium. While many aquatic plants can survive without additional CO₂, a dedicated...

Freshwater Aquarium Food Explained: A Complete Guide to Feeding Tropical Fish, Coldwater Fish, Shrimp and Freshwater Invertebrates
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Freshwater Aquarium Food Explained: A Complete Guide to Feeding Tropical Fish, Coldwater Fish, Shrimp and Freshwater Invertebrates

Proper nutrition is one of the most important aspects of freshwater aquarium care. The right diet supports healthy growth, vibrant colours, disease resistance, breeding success and overall wellbeing. However, with...

Freshwater Aquarium Conditioning Explained: A Complete Guide to Water Conditioners, Beneficial Bacteria, Dechlorinators and Water Preparation
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Freshwater Aquarium Conditioning Explained: A Complete Guide to Water Conditioners, Beneficial Bacteria, Dechlorinators and Water Preparation

Conditioning is one of the most important aspects of freshwater aquarium care. Before fish, plants or shrimp can thrive, the water entering your aquarium must be made safe and stable....

Freshwater Aquarium Lighting Explained: A Complete Guide to Choosing, Using and Optimising Lighting for Freshwater Aquariums
Freshwater Aquarium Filtration Explained: A Complete Guide to Mechanical, Biological and Chemical Filtration for Freshwater Aquariums
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Freshwater Aquarium Filtration Explained: A Complete Guide to Mechanical, Biological and Chemical Filtration for Freshwater Aquariums

Filtration is the heart of every freshwater aquarium. Whether you’re keeping tropical community fish, aquascapes, goldfish, cichlids or shrimp, an effective filtration system is essential for maintaining water quality, supporting...

Marine Aquarium Fittings Explained: A Complete Guide to Ball Valves, Pipework, Tubing and Plumbing Components
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Marine Aquarium Fittings Explained: A Complete Guide to Ball Valves, Pipework, Tubing and Plumbing Components

The plumbing system is one of the most important yet often overlooked parts of a marine aquarium. Whether you’re running a small sump-equipped reef tank or a large custom aquarium,...

Marine Aquarium Accessories Explained: A Complete Guide to Essential Tools, Equipment Add-Ons and Reef Keeping Accessories
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Marine Aquarium Accessories Explained: A Complete Guide to Essential Tools, Equipment Add-Ons and Reef Keeping Accessories

While filtration, lighting and circulation equipment form the foundation of a marine aquarium, accessories are often the items that make reef keeping easier, safer and more enjoyable. From feeding tools...

Marine Aquarium Decoration Explained: A Complete Guide to Aquascaping, Rockwork and Creating a Natural Reef Environment
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Marine Aquarium Decoration Explained: A Complete Guide to Aquascaping, Rockwork and Creating a Natural Reef Environment

Decorating a marine aquarium is about far more than aesthetics. The layout of your aquarium influences water flow, fish behaviour, coral placement, filtration efficiency, and long-term livestock health. A well-designed...

Marine Aquarium Maintenance Explained: A Complete Guide to Keeping Your Saltwater Aquarium Healthy and Stable
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Marine Aquarium Maintenance Explained: A Complete Guide to Keeping Your Saltwater Aquarium Healthy and Stable

Regular maintenance is the foundation of every successful marine aquarium. While modern equipment can automate many aspects of reef keeping, consistent maintenance remains essential for maintaining water quality, preventing equipment...

Marine Aquarium Food Explained: A Complete Guide to Feeding Marine Fish, Corals and Invertebrates
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Marine Aquarium Food Explained: A Complete Guide to Feeding Marine Fish, Corals and Invertebrates

Proper nutrition is one of the most important aspects of maintaining a healthy marine aquarium. While water quality, lighting, and filtration are essential, providing the right food in the correct...

Marine Aquarium Conditioning Supplements Explained: A Complete Guide to Water Conditioners, Bacterial Additives, Trace Elements and Reef Supplements
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Marine Aquarium Conditioning Supplements Explained: A Complete Guide to Water Conditioners, Bacterial Additives, Trace Elements and Reef Supplements

Marine aquarium conditioning supplements can play an important role in creating and maintaining a healthy environment for fish, corals, and invertebrates. From preparing new saltwater and supporting biological filtration to...

Heating and Cooling a Marine Aquarium Explained: A Complete Guide to Maintaining Stable Temperature in Saltwater and Reef Aquariums
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Heating and Cooling a Marine Aquarium Explained: A Complete Guide to Maintaining Stable Temperature in Saltwater and Reef Aquariums

Temperature stability is one of the most important factors in maintaining a healthy marine aquarium. While many hobbyists focus on lighting, filtration, and water chemistry, temperature fluctuations can quickly stress...

Marine Aquarium Lighting Explained: A Complete Guide to Reef Aquarium Lighting for Fish, Corals and Marine Life

Marine Aquarium Lighting Explained: A Complete Guide to Reef Aquarium Lighting for Fish, Corals and Marine Life

Lighting is one of the most important pieces of equipment in a marine aquarium, especially if you keep corals. Modern reef lighting does far more than simply illuminate your aquarium—it...

Marine Aquarium Water Circulation Explained: A Complete Guide to Flow, Powerheads and Wave Makers in Reef Aquariums
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Marine Aquarium Water Circulation Explained: A Complete Guide to Flow, Powerheads and Wave Makers in Reef Aquariums

Water circulation is one of the most important—and often misunderstood—aspects of marine aquarium keeping. While filtration removes waste and maintains water quality, water movement ensures oxygen exchange, nutrient delivery, waste...

Marine Aquarium Filtration Explained: A Complete Guide for Saltwater Aquarium Success
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Marine Aquarium Filtration Explained: A Complete Guide for Saltwater Aquarium Success

Maintaining excellent water quality is the foundation of every successful marine aquarium. Whether you’re keeping fish-only systems, mixed reefs, or demanding SPS corals, understanding filtration is essential for creating a...

Interzoo 2026: The Biggest Innovations in Aquatics
Scaling Up: Transitioning from a Standard Reef Tank to a UNS Full Reef System

Scaling Up: Transitioning from a Standard Reef Tank to a UNS Full Reef System

Thinking about upgrading to a premium reef aquarium? Discover how to successfully transition from a standard reef tank to a stunning Ultum Nature Systems full reef setup.

Precision Parameter Control: Dialling in Water Chemistry for High-Performance Reef Systems
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Precision Parameter Control: Dialling in Water Chemistry for High-Performance Reef Systems

Learn how to master reef aquarium chemistry with this complete guide to alkalinity, calcium, magnesium, nutrients, dosing systems, and precision parameter control.

Coral Zoning & Aquascape Layout in UNS Reef Systems: Maximising Growth & Aesthetics
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Coral Zoning & Aquascape Layout in UNS Reef Systems: Maximising Growth & Aesthetics

Learn how to zone corals effectively within a UNS reef aquarium. Discover expert aquascaping tips, coral placement strategies, and layout ideas to maximise growth, colour, and aesthetics.

Aquascaping, Livestock & Long-Term Care in Your UNS Dual AIO
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Aquascaping, Livestock & Long-Term Care in Your UNS Dual AIO

Discover how to aquascape, stock, and maintain a UNS Dual AIO aquarium. Learn expert tips on coral placement, livestock selection, filtration, and long-term reef care.

Optimising Filtration & Media in the Dual AIO System

Optimising Filtration & Media in the Dual AIO System

Learn how to optimise filtration and filter media in your UNS Dual AIO aquarium. Discover the best mechanical, biological, and chemical filtration strategies for long-term success.

Getting Started with Your UNS Dual AIO: Setup, First Cycle & Expert Tips

Getting Started with Your UNS Dual AIO: Setup, First Cycle & Expert Tips

Learn how to set up your UNS Dual AIO aquarium with this complete beginner’s guide covering installation, cycling, aquascaping, filtration, and expert maintenance tips.

How to Switch Marine Salt Brands Safely (Without Crashing Your Tank)

How to Switch Marine Salt Brands Safely (Without Crashing Your Tank)

Thinking about changing marine salt brands? Learn how to switch reef salts safely, avoid parameter swings, and protect your fish and corals during the transition.

Troubleshooting Marine Salt Problems: Cloudy Water, Alkalinity Swings & More
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Troubleshooting Marine Salt Problems: Cloudy Water, Alkalinity Swings & More

Experiencing cloudy water, alkalinity swings, or unstable salinity in your marine aquarium? Discover the causes of common reef chemistry problems and how to fix them effectively.

Marine Salt 101: Choosing the Right Salt Mix for Your Aquarium
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Marine Salt 101: Choosing the Right Salt Mix for Your Aquarium

Choosing the right marine salt mix is essential for a healthy saltwater aquarium. Learn the differences between reef salts, fish-only salts, and premium formulations in this beginner-friendly guide.

Fluval Flex Maintenance Made Easy: Weekly and Monthly Tasks
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Fluval Flex Maintenance Made Easy: Weekly and Monthly Tasks

Learn the essential weekly and monthly maintenance tasks for your Fluval Flex aquarium. Keep your fish healthy, water clear, and filtration running efficiently with this simple guide.

Best Fish and Plants for the Fluval Flex Aquariums

Best Fish and Plants for the Fluval Flex Aquariums

Discover the best fish and plants for Fluval Flex aquariums, including Betta fish, Ember Tetras, Corydoras, Cherry Shrimp, Java Fern, Anubias, Cryptocoryne, and more.

Fluval Flex Setup Guide: From Unboxing to Aquascaping
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Fluval Flex Setup Guide: From Unboxing to Aquascaping

Learn how to set up your Fluval Flex aquarium from unboxing to aquascaping. A complete beginner-friendly guide covering filtration, planting, cycling, and livestock selection.

Freshwater vs Saltwater: Choosing the Right UNS Dual AIO Setup

Freshwater vs Saltwater: Choosing the Right UNS Dual AIO Setup

Freshwater or saltwater? Discover the key differences between freshwater and marine UNS Dual AIO setups, including costs, maintenance, livestock, and aquascaping possibilities.

Essential Maintenance Tips to Keep Your Dual AIO Aquarium Sparkling Clear

Essential Maintenance Tips to Keep Your Dual AIO Aquarium Sparkling Clear

Discover the essential maintenance tasks that keep your UNS Dual AIO aquarium crystal clear. Learn how to clean filters, manage algae, maintain water quality, and keep livestock healthy.

How to Set Up Your Dual AIO Aquarium for Beginners
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How to Set Up Your Dual AIO Aquarium for Beginners

Learn how to set up your UNS Dual AIO aquarium with this complete beginner’s guide. From choosing a location and cycling the tank to adding fish and maintaining water quality.

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