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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.

ATM Conditioners

ATM Colony Nitrifying Bacteria Saltwater 118ml (4oz)

£7.99 £7.19
  In Stock
 Add To Cart

ATM Colony Nitrifying Bacteria Saltwater 236ml (8oz)

£11.99 £10.79
  Dispatch in 4-5 days
 Add To Cart

ATM Colony Nitrifying Bacteria Saltwater 473ml (16oz)

£18.99 £17.09
  Dispatch in 4-5 days
 Add To Cart

ATM Colony Nitrifying Bacteria Saltwater 946ml (32oz)

£25.99 £23.39
  Dispatch in 4-5 days
 Add To Cart

ATM Colony Nitrifying Bacteria Freshwater 236ml (8oz)

£11.99 £10.79
  In Stock
 Add To Cart

ATM Colony Nitrifying Bacteria Freshwater 118ml (4oz)

£7.99 £7.19
  In Stock
 Add To Cart

ATM Colony Nitrifying Bacteria Freshwater 473ml (16oz)

£19.00 £17.10
  In Stock
 Add To Cart

ATM Colony Nitrifying Bacteria Freshwater 946ml (32oz)

£25.99 £23.39
  Dispatch in 4-5 days
 Add To Cart

ATM Outbreak! Bio-Maintenance Saltwater 236ml (8oz)

£10.99 £9.89
  In Stock
 Add To Cart

ATM Outbreak! Bio-Maintenance Saltwater 473ml (16oz)

£15.95 £14.35
  In Stock
 Add To Cart

ATM Outbreak! Bio-Maintenance Saltwater 946ml (32oz)

£27.99 £25.19
  In Stock
 Add To Cart

ATM Outbreak! Bio-Maintenance Freshwater 118ml (4oz)

£7.96 £7.16
  Dispatch in 4-5 days
 Add To Cart

ATM Outbreak! Bio-Maintenance Freshwater 236ml (8oz)

£10.99 £9.89
  Dispatch in 4-5 days
 Add To Cart

ATM Outbreak! Bio-Maintenance Freshwater 473ml (16oz)

£12.95 £11.65
  In Stock
 Add To Cart

ATM SupaNova Carbon Freshwater 8oz

£11.99 £10.79
  Dispatch in 4-5 days
 Add To Cart

ATM SupaNova Carbon Freshwater 16oz

£17.99 £16.19
  Dispatch in 4-5 days
 Add To Cart

ATM SupaNova Carbon Saltwater 8oz

£11.99 £9.59
  In Stock
 Add To Cart

ATM SupaNova Carbon Saltwater 16oz

£16.99 £13.59
  In Stock
 Add To Cart

ATM Paradigm All Natural Dechlorinator 118ml (4oz)

£7.49 £6.74
  In Stock
 Add To Cart

ATM Paradigm All Natural Dechlorinator 236ml (8oz)

£11.99 £10.79
  Dispatch in 4-5 days
 Add To Cart

ATM Paradigm All Natural Dechlorinator 473ml (16oz)

£17.99 £16.19
  In Stock
 Add To Cart

ATM Barrier Standard Dechlorinator 473ml (16oz)

£12.95 £11.66
  In Stock
 Add To Cart

ATM Agent Green Phosphate Remover 118ml (4oz)

£16.99 £15.29
  Dispatch in 4-5 days
 Add To Cart

ATM Agent Green Phosphate Remover 236ml (8oz)

£26.95 £24.25
  In Stock
 Add To Cart

ATM Agent Green Phosphate Remover 473ml (16oz)

£39.95 £35.95
  In Stock
 Add To Cart

ATM Barrier Standard Dechlorinator 236ml (8oz)

£8.95 £8.05
  Dispatch in 4-5 days
 Add To Cart

ATM Barrier Standard Dechlorinator 118ml (4oz)

£6.49 £5.84
  Dispatch in 4-5 days
 Add To Cart

ATM Triage First Response 236ml (8oz)

£12.99 £11.69
  In Stock
 Add To Cart

ATM Triage First Response 473ml (16oz)

£14.99 £13.49
  Dispatch 5-10 days
 Add To Cart

ATM Alka-Haul Reef (8oz)

£16.99 £15.29
  In Stock
 Add To Cart

ATM Alka-Haul Freshwater (8oz)

£19.99 £16.99
  In Stock
 Add To Cart

Our Bestsellers

ATM Colony Nitrifying Bacteria Saltwater 946ml (32oz)

ATM Colony Nitrifying Bacteria Saltwater 946ml (32oz)

£25.99
ATM’s Colony establishes this bio-filtration in days instead of weeks with real, commercial grade nitrifying bacteria
  Dispatch in 4-5 days
 Add To Cart
ATM Colony Nitrifying Bacteria Saltwater 473ml (16oz)

ATM Colony Nitrifying Bacteria Saltwater 473ml (16oz)

£18.99
ATM’s Colony establishes this bio-filtration in days instead of weeks with real, commercial grade nitrifying bacteria
  Dispatch in 4-5 days
 Add To Cart
ATM Colony Nitrifying Bacteria Saltwater 236ml (8oz)

ATM Colony Nitrifying Bacteria Saltwater 236ml (8oz)

£11.99
ATM’s Colony establishes this bio-filtration in days instead of weeks with real, commercial grade nitrifying bacteria
  Dispatch in 4-5 days
 Add To Cart
ATM Colony Nitrifying Bacteria Saltwater 118ml (4oz)

ATM Colony Nitrifying Bacteria Saltwater 118ml (4oz)

£7.99
ATM’s Colony establishes this bio-filtration in days instead of weeks with real, commercial grade nitrifying bacteria
  In Stock
 Add To Cart
ATM Agent Green Phosphate Remover 118ml (4oz)

ATM Agent Green Phosphate Remover 118ml (4oz)

£16.99
Agent Green acts as an ion exchanger and uses calcium to bind phosphate into insoluble beads. This is important because the phosphate will not dissolve back into the water while waiting to be swept out by filtration
  Dispatch in 4-5 days
 Add To Cart
ATM Colony Nitrifying Bacteria Freshwater 236ml (8oz)

ATM Colony Nitrifying Bacteria Freshwater 236ml (8oz)

£11.99
ATM’s Colony establishes this bio-filtration in days instead of weeks with real, commercial grade nitrifying bacteria
  In Stock
 Add To Cart
ATM Colony Nitrifying Bacteria Freshwater 118ml (4oz)

ATM Colony Nitrifying Bacteria Freshwater 118ml (4oz)

£7.99
ATM’s Colony establishes this bio-filtration in days instead of weeks with real, commercial grade nitrifying bacteria
  In Stock
 Add To Cart
ATM Outbreak! Bio-Maintenance Saltwater 946ml (32oz)

ATM Outbreak! Bio-Maintenance Saltwater 946ml (32oz)

£27.99
ATM’s Outbreak! is a high-powered biological sludge remover that consumes decomposing organics, leaving aquariums clean and free of waste
  In Stock
 Add To Cart

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.

Trustpilot

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