Water Treatments
- Range of fish tank water treatments
- Vitamins and additives
- Remove harmful bacteria
For questions about our aquatic products, please contact us.
Showing all 118 results
Aquarium Systems Start Up Program Marine
4 in Stock
£14.09RRP: £16.29SAVE £2.20
Aquarium Systems Reef Evolution Bio Degradeur Unidose
4 in Stock
£12.14RRP: £13.29SAVE £1.15
Aquarium Systems Reef Crystals Salt 10kg/300L
Over 50 in Stock
£32.09RRP: £35.29SAVE £3.20
Aquarium Systems Reef Crystals Salt 4kg/120L
15 in Stock
£14.58RRP: £16.19SAVE £1.61
Aquarium Systems Reef Crystals Salt 20kg/600L
Over 50 in Stock
£53.49RRP: £58.89SAVE £5.40
Aquarium Systems SeaTest NH4 Ammonia – 40 Tests
6 in Stock
£19.44RRP: £21.99SAVE £2.55
Aquarium Systems SeaTest NO2 Nitrite – 100 Tests
7 in Stock
£19.44RRP: £21.99SAVE £2.55
Aquarium Systems SeaTest GH Hardness – 40 Tests
17 in Stock
£17.21RRP: £19.09SAVE £1.88
Aquarium Systems SeaTest KH Alkalinity – 100 Tests
12 in Stock
£16.53RRP: £18.69SAVE £2.16
Aquarium Systems SeaTest PH – 100 Tests
4 in Stock
£17.49RRP: £19.49SAVE £2.00
Aquarium Systems SeaTest MG Magnesium – 40 Tests
14 in Stock
£23.34RRP: £26.39SAVE £3.05
Aquarium Systems SeaTest CA Calcium – 40 Tests
16 in Stock
£19.44RRP: £21.99SAVE £2.55
Aquarium Systems SeaTest PO4 Phosphate – 40 Tests
16 in Stock
£19.44RRP: £21.99SAVE £2.55
Aquarium Systems Nano Maintenance Program Marine
15 in Stock
£9.72RRP: £10.99SAVE £1.27
Aquarium Systems Nano Algae Control Program Marine
8 in Stock
£9.72RRP: £10.99SAVE £1.27
Aquarium Systems Maintenance Program Marine
5 in Stock
£14.09RRP: £16.29SAVE £2.20
Aquarium Systems Instant Ocean Salt 4kg/120L
Over 50 in Stock
£12.64RRP: £13.99SAVE £1.35
Aquarium Systems Instant Ocean Salt 10x2kg
Over 50 in Stock
£44.74RRP: £51.99SAVE £7.25
Aquarium Systems Instant Ocean Salt 10kg/300L
Over 50 in Stock
£27.23RRP: £29.99SAVE £2.76
Aquarium Systems Nano Start Up Program Freshwater
8 in Stock
£9.72RRP: £10.99SAVE £1.27
Aquarium Systems Nano Maintenance Program Freshwater
8 in Stock
£9.72RRP: £10.99SAVE £1.27
Aquarium Systems Nano Algae Control Program Freshwater
14 in Stock
£9.72RRP: £10.99SAVE £1.27
Aquarium Systems Maintenance Program Freshwater
6 in Stock
£13.61RRP: £15.59SAVE £1.98
Aquarium Systems Start Up Program Freshwater
17 in Stock
£13.61RRP: £15.59SAVE £1.98
Aquarium Systems Waste-Away Freshwater 250ml
13 in Stock
£18.37RRP: £19.99SAVE £1.62
Aquarium Systems Re-Fresh Freshwater 250ml
11 in Stock
£19.44RRP: £21.29SAVE £1.85
Aquarium Systems Waste-Away Gel Freshwater Small
Over 50 in Stock
£16.53RRP: £18.39SAVE £1.86
Aquarium Systems Waste-Away Gel Marine Medium
35 in Stock
£25.28RRP: £28.09SAVE £2.81
Aquarium Systems Waste-Away Gel Marine Small
3 in Stock
£18.47RRP: £20.49SAVE £2.02
Aquarium Systems Waste-Away Gel Marine Small
12 in Stock
£9.72RRP: £10.79SAVE £1.07
Aquarium Systems Waste-Away Gel Marine Large x2
12 in Stock
£35.59RRP: £39.49SAVE £3.90
Aquarium Systems Waste-Away Gel Marine Large
16 in Stock
£18.96RRP: £21.09SAVE £2.13
Aquarium Systems Waste-Away Gel Freshwater Large
Over 50 in Stock
£32.09RRP: £35.69SAVE £3.60
Aquarium Systems Waste-Away Gel Freshwater Large
29 in Stock
£18.47RRP: £20.49SAVE £2.02
Aquarium Systems Waste-Away Gel Freshwater Medium x2
Over 50 in Stock
£23.34RRP: £25.99SAVE £2.65
Aquarium Systems Waste-Away Gel Freshwater Medium
42 in Stock
£12.64RRP: £13.99SAVE £1.35
Exo Terra Turtle Clean Water Conditioner 250ml PT1999
Out of Stock
£12.44RRP: £13.89SAVE £1.45
Aquarium Systems Colour Up Program Marine
10 in Stock
£12.83RRP: £14.49SAVE £1.66
Aquarium Systems Algae Control Program Marine
9 in Stock
£14.09RRP: £16.29SAVE £2.20
Special Offer
![]()
A badge that's just for this
£13.61£12.00RRP: £15.59SAVE £3.59
Aquarium Systems Algae Control Program Freshwater
2 in Stock
Aquarium Systems First Defense Freshwater 250ml
13 in Stock
£11.66RRP: £12.79SAVE £1.13
Aquarium Systems Eco-Balance Probiotic Freshwater 250ml
24 in Stock
£11.66RRP: £12.79SAVE £1.13
Aquarium Systems One & Only Freshwater 250ml
28 in Stock
£24.79RRP: £26.99SAVE £2.20
Aquarium Systems Clear-Up Freshwater 250ml
3 in Stock
£15.07RRP: £16.49SAVE £1.42
Aquarium Systems Instant Cichlid Salt 400g/2250L
8 in Stock
£12.05RRP: £13.49SAVE £1.44
Dr Tim’s Freshwater One And Only 2oz – (30gal)
32 in Stock
£13.71RRP: £15.29SAVE £1.58
Dr Tim’s Freshwater One And Only 4oz – (60gal)
Over 50 in Stock
£24.31RRP: £26.99SAVE £2.68
Dr Tim’s Freshwater One And Only 8oz – (120gal)
25 in Stock
£36.96RRP: £40.99SAVE £4.03
Dr Tim’s Freshwater One And Only 16oz – (240gal)
11 in Stock
£69.06RRP: £76.69SAVE £7.63
Dr Tim’s Freshwater AquaCleanse 4oz – (240gal)
Over 50 in Stock
£6.31RRP: £6.99SAVE £0.68
Dr Tim’s Freshwater AquaCleanse 8oz – (480gal)
20 in Stock
£9.23RRP: £10.29SAVE £1.06
Dr Tim’s Freshwater AquaCleanse 16oz – (960gal)
14 in Stock
£12.64RRP: £13.99SAVE £1.35
Dr Tim’s Freshwater AquaCleanse 32oz – (1920gal)
1 in Stock
£20.42RRP: £22.69SAVE £2.27
Dr Tim’s Freshwater First Defence 4oz – (240gal)
2 in Stock
£8.26RRP: £9.19SAVE £0.93
Dr Tim’s Freshwater First Defence 8oz – (480gal)
6 in Stock
£13.12RRP: £14.59SAVE £1.47
Dr Tim’s Freshwater First Defence 16oz – (960gal)
7 in Stock
£18.47RRP: £20.49SAVE £2.02
Dr Tim’s Freshwater Clear Up 4oz – (240gal)
1 in Stock
£9.91RRP: £10.99SAVE £1.08
Dr Tim’s Freshwater Clear Up 8oz – (480gal)
18 in Stock
£16.53RRP: £18.39SAVE £1.86
Dr Tim’s Freshwater Clear Up 16oz – (960gal)
2 in Stock
£25.28RRP: £28.09SAVE £2.81
Dr Tim’s Freshwater Re-Fresh 4oz – (240gal)
1 in Stock
£13.12RRP: £14.59SAVE £1.47
Dr Tim’s Freshwater Re-Fresh 8oz – (480gal)
5 in Stock
£23.34RRP: £25.99SAVE £2.65
Dr Tim’s Freshwater Re-Fresh 16oz – (960gal)
2 in Stock
£38.89RRP: £43.19SAVE £4.30
Dr Tim’s Freshwater Eco-Balance 4oz – (120gal)
3 in Stock
£9.23RRP: £10.29SAVE £1.06
Dr Tim’s Freshwater Eco-Balance 8oz – (240gal)
4 in Stock
£12.64RRP: £13.99SAVE £1.35
Dr Tim’s Freshwater Eco-Balance 16oz – (480gal)
5 in Stock
£17.49RRP: £19.49SAVE £2.00
Dr Tim’s Freshwater Waste-Away 4oz – (120gal)
25 in Stock
£8.84RRP: £9.89SAVE £1.05
Dr Tim’s Freshwater Waste-Away 8oz – (240gal)
7 in Stock
£14.58RRP: £16.19SAVE £1.61
Dr Tim’s Freshwater Waste-Away 16oz – (480gal)
8 in Stock
£20.42RRP: £22.69SAVE £2.27
Dr Tim’s Reef One And Only 2oz – (30gal)
23 in Stock
£15.56RRP: £17.29SAVE £1.73
Dr Tim’s Reef One And Only 4oz – (60gal)
Over 50 in Stock
£26.26RRP: £29.19SAVE £2.93
Dr Tim’s Reef One And Only 16oz – (240gal)
22 in Stock
£71.97RRP: £79.99SAVE £8.02
Dr Tim’s Reef One And Only 32oz – (480gal)
4 in Stock
£140.06RRP: £155.49SAVE £15.43
Dr Tim’s Reef First Defence 4oz – (240gal)
11 in Stock
£8.26RRP: £9.19SAVE £0.93
Dr Tim’s Reef First Defence 8oz – (480gal)
21 in Stock
£13.12RRP: £14.59SAVE £1.47
Dr Tim’s Reef First Defence 16oz – (960gal)
3 in Stock
£18.47RRP: £20.49SAVE £2.02
Dr Tim’s Reef Clear Up 32oz – (1920gal)
2 in Stock
£47.66RRP: £52.99SAVE £5.33
Dr Tim’s Reef Re-Fresh 32oz – (1920gal)
2 in Stock
£74.89RRP: £83.19SAVE £8.30
Dr Tim’s Reef Eco-Balance 4oz – (120gal)
39 in Stock
£8.84RRP: £9.89SAVE £1.05
Dr Tim’s Reef Eco-Balance 16oz – (480gal)
8 in Stock
£17.99RRP: £19.99SAVE £2.00
Dr Tim’s Reef Eco-Balance 32oz – (960gal)
1 in Stock
£30.14RRP: £33.49SAVE £3.35
Dr Tim’s Reef Waste-Away 4oz – (120gal)
Over 50 in Stock
£9.72RRP: £10.79SAVE £1.07
Dr Tim’s Reef Waste-Away 32oz – (960gal)
4 in Stock
£35.98RRP: £39.99SAVE £4.01
Exo Terra Aquatize Water Conditioner 120ml PT1979
Over 50 in Stock
£7.77RRP: £8.39SAVE £0.62
Aquarium Systems Nano Start Up Program Marine
13 in Stock
£9.72RRP: £10.99SAVE £1.27
Aquarium Systems Reef Evolution Bio Degradeur 250ml
24 in Stock
£18.47RRP: £20.49SAVE £2.02
Aquarium Systems Sea Buffer pH Booster Powder 1000g
6 in Stock
£35.01RRP: £38.89SAVE £3.88
Aquarium Systems Sea Buffer pH Booster Powder 500g
9 in Stock
£22.17RRP: £24.99SAVE £2.82
Aquarium Systems Reef Evolution Reef Elements 250ml
24 in Stock
£16.53RRP: £18.19SAVE £1.66
Aquarium Systems Reef Evolution Reef Tonic 1 & 2, 2x500ml
7 in Stock
£12.44RRP: £13.69SAVE £1.25
Aquarium Systems Reef Evolution ReefKalk 500g
8 in Stock
£24.79RRP: £27.49SAVE £2.70
Aquarium Systems Reef Evolution Magnesium Concentrate 250ml
8 in Stock
£12.44RRP: £13.69SAVE £1.25
Aquarium Systems Reef Evolution Strontium Concentrate 250ml
6 in Stock
£12.44RRP: £13.69SAVE £1.25
Aquarium Systems Reef Evolution Calcium Concentrate 250ml
21 in Stock
£12.44RRP: £13.69SAVE £1.25
Aquarium Systems Reef Evolution Waste-Away 250ml
4 in Stock
£17.99RRP: £19.89SAVE £1.90
Aquarium Systems Reef Evolution Re-Fresh 250ml
9 in Stock
£19.93RRP: £21.89SAVE £1.96
Aquarium Systems Reef Evolution First Defense 250ml
21 in Stock
£12.14RRP: £13.29SAVE £1.15
Aquarium Systems Reef Evolution Eco-Balance Probiotic 250ml
16 in Stock
£12.14RRP: £13.29SAVE £1.15
Aquarium Systems Reef Evolution One & Only 250ml
12 in Stock
£24.79RRP: £26.99SAVE £2.20
Aquarium Systems Reef Evolution Coralline Booster 250ml
5 in Stock
£16.53RRP: £18.19SAVE £1.66