I bought 3 harlequin rasboras on Friday. I woke up this morning and 1 was dead. I noticed last night that it was keeping its mouth open and wasn't really swimming around. It also didn't seem to eat when I fed them. I've been keeping a close eye on my other fish and they seem to be fine. Any ideas why the 1 died? I checked the water today and ammonia, nitrites and nitrates are all fine.
I planned on getting 2 more this week...now i'll have to get 3. Do I need to be concerned before adding more fish even if the other 2 appear ok?
Btw... there wasn't any aggressive behavior going on from what I can tell.
I planned on getting 2 more this week...now i'll have to get 3. Do I need to be concerned before adding more fish even if the other 2 appear ok?
Btw... there wasn't any aggressive behavior going on from what I can tell.