# salt water treatment

I see a lot of new members ask about UV sterilizers, usually right after dealing with green water or an ich outbreak, so I figured I'd put together a straightforward explanation for anyone starting out. There's a lot of half-right info floating around about these, so here's the honest version...

Here is the situation, I believe my teenage platy has fin rot as well as my daughters betta. I have a 36 gal tank & my daughter has a separate 5 gal betta tank. Her betta used to share his tank with another betta (with a divider) & came down with fin rot. We removed the other betta & got him...