I have 10 tetras. They all seem to have white spots all over their bodies. One has a bit of its fin nipped too. Is this a fungus? And what should I do? It has not been a month since I got the fish and my tank. Thanks for any advice.
Get treating for whitespot then.
Check instructions carefully that you can add the full dose with the fish you keep.
Turn temp up to 30.
Increase aeration in the tank as the med and high temp reduce 02 in the water.
Don't forget to remove black carbon if you use it.
Good luck.