What to do, what to do?

[reefgirl189]

You could look into getting a big livestock watering through (whatever they are called) and treat everyone in that at the same time. They have all the way from 50 gal to 300 gal and this way you don't need to contaminate a tank with the medication. I believe you can even rent these from some agricultural and farm supply stores:


http://www.rubbermaidcommercial.com/...ock_tanks_4247