Hi and welcome to the forum
What are the tank dimensions (length x width x height)?
What is the GH
(general hardness), KH
(carbonate hardness) and pH of your water supply?
This information can usually be obtained from your water supply company's website or by telephoning them. If they can't help you, take a glass full of tap water to the local pet shop and get them to test it for you. Write the results down (in numbers) when they do the tests. And ask them what the results are in (eg: ppm
, dGH, or something else).
I assume you want to keep African Rift Lake cichlids from Lake Victoria, Lake Malawi and Lake Tanganyika. If yes, they need very hard water (GH
above 300ppm) and a pH above 7.6.
If you want soft water cichlids from Africa, they do best in water with a GH
below 100ppm and a pH around 6.5-7.0.