1. Water filter. Water filter as the name suggest is used to remove and prevent harmful substances from the tank.
2. Water heater. A water heater is used to increase the temperature of water to a level that is suitable for the fish that is in a particular tank.
3. Thermometer. This is used to measure the temperature of water at a particular time.
4. pH meter. pH meter measures the degree to which water is acidic or alkaline. It is a useful water quality parameter that can affect the fish.
5. Ammonia testing kit. Ammonia testing kits come in different forms depending on the manufacturer. They are used to test the level of ammonia and related compounds in the water at any given time.
6. Lights. They are used to illuminate the aquarium and sometimes to beautify the aquarium when different colors are being used.
