i've got:- Cupid Cichlids Rummynose Tetras Black Phantom Tetras Corydoras C048 catfish Port Hoplo Catfish Bristlenose Plecs Kuhli Loaches female Ocellated Kribensis clown loaches neon blue rams platys cardinal tetras silver tips honey gournami and they all get along great.
had 2 pearl gournamis though that got an asbo and had to go.
yea,it was an eheim pump and was quite quiet but the vibration of the water coming out of the stone was noticeable. i won't be getting a new one. leave the fish in peace i've got enough surface movement from my spray bar.
my air pump broke the other day which ran an air stone in my 400l tank,since it broke my fish has been completely different. he used to sit in the corner twice a day for a good hour when the pump was working and now flies around and hasn't sat once since it broke. food for thought.... fish are annoyed by air stones?