updated pic of the money pit

any feedback or ideas for this 35

I would like to use my 35 and try my hand at salt water again. Last time it didn't go so well. (my fault) :agree:Here is the equipment that I have. 1-35 gal tank (on stand) 1- light (T-5/10k bulbs) 2-heaters (1 each for 10 gal and 35) filters (will need suggestions on new for set up) 2-10...

see only a few on 2 or 3 of the fish in morn then they rub on the rocks and they disappear. Is this good or do I have to treat the tank?