Originally Posted by abby88
hello im abby from scotland looking for some advice just went from a 65L tank to 125L tank i have two plecos three clown loaches two very big goldfishes and two x-ray-tetras, been keeping fish for about two years and now need advice myself. on why there swimming around erratically and banging
against the side of the tank checked ph it was 6.0 and 0.0 nitrate left the lighting off just now and covered the tank,all fish were moved safely and did'nt have any problems to begin with now when the lights are on they freak out
Hi and welcome to AA!
Unfortunately 28g isn't big enough for your fish even now sorry. You have some very big fish there and they need very big tanks with high filtration. The goldfish are cool water fish and require a different temperature to the rest of your fish. Are they fancy goldfish or common, comet or koi? If they are the latter three then they are pond fish and will reach 1-2 foot long. Just one common pleco needs a 125gallon tank. With two 200g+ would be needed. They can reach 2 foot long and, like goldfish, are VERY high waste producers so need extra filtration. Clown loaches get huge too. They also need 125g+ and have been known to reach the size of foot balls. They like to be kept in schools of 6 or more. X-ray tetras need schools of 6+ of their own kind. They are the only fish you own that are suitable for your tank.
I noticed you are using a new filter. Did you happen to keep the old media and use it in your new filter? If you didn't your tank will be cycling because you have thrown out your BB (beneficial bacteria).
A pH of 6 is quite low. Is it normally that? Fish can adapt to any pH as long as its stable.
They could be stressing from the move or from water conditions or both. If they are banging into the sides of the tank that sounds like stress and fear.