Aquarium Treatments & Fish Tank Additives

Getting the dose right matters just as much as choosing the correct treatment, since most products are formulated to work per litre of water rather than per tank. If you're unsure of your exact volume, use our fish tank volume calculator to work out what you need before adding any de-chlorinator, medication or bacterial start-up treatment, as under-dosing can leave issues untreated while over-dosing may stress your fish. It's also worth keeping a basic test kit on hand even when your fish seem healthy, as regular checks on ammonia, nitrite and pH let you catch problems early, well before symptoms appear, making treatment quicker, cheaper and far less stressful for your livestock.