I set up a new 36g Aquarium (30l*15w*21h) it came with a 200w heater and a power filter. I left the aquarium running for 24 hrs with the power filter without fish. I bought cichlids 1yellow lab,3 red zebra and am not sure about the remaining 2. Is it ok to have them in a same tank. how many cichlid i can store in my 36g aquarium. As am new to aquarium i don''t know what equipments still i need and how to check for ph level, nitrogen level and all other stuffs. Is it important to have an air pump. Please help me
Thanks in advance
Devi




