Verified answer

Your problem is most likely a buildup of ammonia if this tank didn't have all (or any) fish in it before. Moving the water wouldn't matter - it's the gravel and filter media where the bacteria that converts the ammonia and nitrite to nitrate. When you added the fish, at thet very least you increased the amount of ammonia above what the bacteria in that tank had been handling previously, and if you didn't have fish in it before and didn't cycle it, then there are no bacteria to convert the wastes to a product that isn't toxic to the fish.

Try doing an ammonia test to check the level, but if you aren't able to do this, try doing a 25% water change on the tank.

Try adding an airstone/bubbler to add more air to the water... and keep the fish in the little tank **only as long as you absolutely have to**. It's much too small for all of them! And in the future, if you ever have to do a repair again, fill the small tank with water taken directly from the original (bigger) tank. That way your fish are already used to it!

the bala sharks by themselves will need a 100 gallon tank as they get a foot long and are very active the loaches aren't in big enough numbers to be really active and the clowns should get in the 100 with the balas they get big too but grow slow.

it sounds like they are just cramped and stressed.

They can fit in there??? They r suffering get those fish out of there so they can BREATHE!!!!

get them out they dont have enough air