Brown diatom algae cure??

[BCOrchidGuy]

One really bad thing about using antibiotics is that you will end up with resistant strains of algae. Make sure your water is filtered as diatoms live off of silicates, and give it a bit of time.

I just picked up the Sprung book on algae and I tell you there is alot of good information. Does your brown diatom slime have bubbles? if so you may have another problem all together. If you don't have the Sprung book I highly recommend it, J&L sells it for a song.