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Installation & Maintenance

We build and maintain beautiful aquariums.

Free Shipping Over £50

Spend over £50 on your order and qualify for free shipping.

Flexible Payment Options

We offer flexible monthly finance options.

Price Match

Found item from our catalog cheaper? We'll price match it!

Reward Points

As a thank you, we run the Charterhouse Points scheme.

Modern Reef Conditioners

Modern Reef One-4Reef 5L

£94.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef One-4Reef 2.5L

£64.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Reef-Keeping System (RKS) 4 × 2.5L Set

£71.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Reef-Keeping System (RKS) 4 × 5L Set

£119.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef RKS Saver - 4 x 1LTR

£104.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Polypop 100ml

£46.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Polypop 250ml

£89.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Complete Reef Food 100ml

£46.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Complete Reef Food 250ml

£89.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Nitri-Bac 150ml

£34.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef C-Dip 1 and 2 2 x 30ml

£49.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef CyanoCleaner 100ml

£40.00
  Out Of Stock
 Add To Cart

Modern Reef N+ (Nitrogen NO3 MIX) 1000ml

£40.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef P+ (Phosphorus PO4 MIX) 1000ml

£36.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef C+ (Complex Carbons) 1000ml

£44.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Ca+ (Calcium) 1000ml

£19.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Mg+ (Magnesium) 1000ml

£19.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef K+ (Potassium) 1000ml

£19.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Sr+ (Strontium) 1000ml

£19.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef B+ (Boron) 1000ml

£19.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Br+ (Bromine) 1000ml

£19.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Ba+ (Barium) 1000ml

£19.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef F+ (Flourine) 250ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Mo+ (Molybdenum) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Ni+ (Nickel) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Li+ (Lithium) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Fe+ (Iron) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Zn+ (Zinc) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef V+ (Vanadium) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Co+ (Cobalt) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Cr+ (Chromium) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef Mn+ (Manganese) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef I+ (Iodine) 100ml

£17.99
  Dispatch 5-10 days
 Add To Cart

Modern Reef BIODiversity 500ml

£22.98
  In Stock
 Add To Cart

Modern Reef BIODiversity 1000ml

£44.99
  In Stock
 Add To Cart

Our Bestsellers

Modern Reef Reef-Keeping System (RKS) 4 × 2.5L Set

Modern Reef Reef-Keeping System (RKS) 4 × 2.5L Set

£71.99
It contains all essential trace elements found in natural seawater, organic and inorganic micronutrients, and amino acids in one set of 4 canisters!
  Dispatch 5-10 days
 Add To Cart
Modern Reef BIODiversity 500ml

Modern Reef BIODiversity 500ml

£22.98
Modern Reef BIODiversity will provide your reef with diverse marine bacterial strains, microorganisms, minerals, and nutrients in a lab bio-engineered solution
  In Stock
 Add To Cart
Modern Reef Reef-Keeping System (RKS) 4 × 5L Set

Modern Reef Reef-Keeping System (RKS) 4 × 5L Set

£119.99
It contains all essential trace elements found in natural seawater, organic and inorganic micronutrients, and amino acids in one set of 4 canisters!
  Dispatch 5-10 days
 Add To Cart
Modern Reef CyanoCleaner 100ml

Modern Reef CyanoCleaner 100ml

£40.00
The quickest and safest way to remove all types of cyanobacteria. Works by oxidizing organic sludge and promotes an ideal enzyme balance
  Out Of Stock
 Add To Cart
Modern Reef Polypop 100ml

Modern Reef Polypop 100ml

£46.99
Designed especially for SPS polyp coloration, maximum extension, and coral pigmentation. Complementary product for Complete Reef Food and the proporcional consumtion reef keeping system
  Dispatch 5-10 days
 Add To Cart
Modern Reef Complete Reef Food 100ml

Modern Reef Complete Reef Food 100ml

£46.99
Complete Reef Food is part of our promotional consumption reef-keeping system. A complete reef food for the entire modern reef aquarium inhabitants like micro-organisms, symbiotic bacteria, filter feeders, and corals both directly and indirectly
  Dispatch 5-10 days
 Add To Cart
Modern Reef Nitri-Bac 150ml

Modern Reef Nitri-Bac 150ml

£34.99
LIVE marine nitrifying bacteria! Ideal for cycling new reef aquariums to maintain a healthy reef with a weekly dosage, after a water change, when adding new fish, and after a treatment
  Dispatch 5-10 days
 Add To Cart
Modern Reef One-4Reef 2.5L

Modern Reef One-4Reef 2.5L

£64.99
??ONE-4Reef is a super-concentrated pure organic form of our proportional consumption reef-keeping system in one canister. It contains all necessary trace elements in natural seawater, organic micro-nutrients, and amino acids in one product!
  Dispatch 5-10 days
 Add To Cart


Welcome to Modern Reef! A brand created and used by one of the most prestigious 100% aquaculture coral farms in Europe, Euro Corals! A complete and advanced state-of-the-art ICP, IC, reef aquarium laboratory, pharmaceutical-grade supplements, and reef aquarium products. With an intellectual website system to show lab results, using “chart” or “simple” view. It can find a maintenance and correction dosage for a deviated parameter, with a smart reefing guide for beginners, advanced setpoint tweak tools for experts, reef setpoint presets, and much more. All based on your water analysis, aquarium type, and equipment used to maintain a colorful and thriving reef aquarium easily and interactively.

Why our delivery is awesome!

Just a few reasons why Charterhouse are the industry leaders

1 Hour Delivery Slot

We provide a 1 hour delivery slot for all Premium Next Day delivery services. No more waiting in all day.

SMS And Email Notification

Your delivery slot will be text and emailed to you. You can then submit a different day or request the parcel is left with a neighbour.

Weekend Deliveries

We now offer deliveries on both days of the weekend. These services can be selected at checkout.

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Free Shipping Over £50

Spend over £50 on your order and qualify for free shipping. Next day and timed services available.

Find out more

Flexible Payment Options

We offer flexible monthly finance options. Credit is subject to application and status.

Find out more

Reward Points

As a thank you, we run the Charterhouse Points scheme. Earn points on every order.

Find out more
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