So I started this tank last Monday with 5 silver tipped tetras. The tank is a
29g. I have 3 small plants and a fake log for them to play with.
As soon as we put them in the tank we noticed one fish started looking sick (was tipping over when he swam) so we got our water tested and the pH was off so we added pH fixer and aquarium salts, as the fish person instructed. The next day he was looking better; less pale but still tipped over a little when he swam.
Then we had to leave on Saturday and when we got back on Sunday the fish was
dead. We thought maybe there was another chemical spike or whatever so we added
a little more ph fixer.
On Monday night they started chasing eachother. At first it just looked like
they were playing but they haven't stopped. Then next day they chased each other
more often and it even looked like they were nipping eachother. It looked like the orangey colored ones (males?) were doing most of the chasing, and the silvery one (female?) was being bullied (there's one other fish that didn't really participate...i'm thinking hes a juvenile because hes so small). After several hours of this, the female started hiding behind the filter (it's the kind that you hang on your tank, not underground), but it doesnt look comfy at all because she has to constantly swim against the current that's being pushed out right next to her. When she's up there the orangey fish don't bother her at all, they just chase each other or the little one).
So yesterday I went to Petco and asked if getting another fish would solve the problem. The guy said community fish usually do better in odd numbers so I got another fish. I put it in the tank and it looks like a female. As soon as she got in the water, the orange fish started chasing her, so she hid behind the filter with the other female. After awhile she came out and seemed to be ignoring the fish trying to chase her.
Sometimes the females and the little one just hide in random corners.
Sorry for the HUGE post but I'm really worried!