Reduce aquarium maintenance with this easy-to-use treatment. Easy-to-use fizzing tablet clears unwanted algae and sludge for a clearer aquarium. Makes aquarium maintenance easierCleans away algae and sludgeEncourages plant growthGive your aquarium maintenance a helping hand with Keep it Clean tablets. Algae sludge waste build-up they\'re common enough problems in most aquariums and can be nasty jobs to sort out especially if there\'s a lot to do. That\'s why we can\'t recommend Keep it Clean Tablets enough. Each little fizzing tablet works wonders at keeping your aquarium free of sludge and algae by starving out pesky algae and breaking down waste so your fish have a beautiful clear aquarium once more. These clever little tablets also include a pH buffer to help stop the pH from dropping below the safe level of 6.5. You\'ll notice the difference with easier aquarium maintenance and your fish and plants will thrive in the perfectly balanced water.Use for removing unsightly algae and sludge from aquariums. Can also be used on a regular basis to prevent excess waste build-up.