K KCGirl New member Jun 24, 2009 #1 I've got quite a new tank, had a few casualties, hopefully on the mend now. Just wondering why my Platys and Tetras sometimes swim up and down the tank (ie surface to gravel and back) repeatedly and quickly. Is that happy behaviour or stress?
I've got quite a new tank, had a few casualties, hopefully on the mend now. Just wondering why my Platys and Tetras sometimes swim up and down the tank (ie surface to gravel and back) repeatedly and quickly. Is that happy behaviour or stress?
