PNWaquarist
Aquarium Advice Addict
I have a 29 gallon tank that is almost fully stocked (7 Cardinal Tetras, 7 Black Neon Tetras, 7 Rummynose Tetras, and 4 Sterbai Corys) and I'm looking for a single small cichlid to round my tank. Would a single Cockatoo work in a peaceful community tank that is moderately-to-heavily planted (one side is shaded with Hornwort) and has a couple of bog wood caves for hiding? My tank parameters are 77 F, pH 7.3-7.4, and ~3 dGH. I do 2 x 20% water changes per week and my nitrates are usually in the 8-15 ppm range.