Quote Originally Posted by wh33t
Quote Originally Posted by urbanfarmer
Normally yes, but if it is small enough you can just do 50% water changes using a garden hose. Of course that depends on your water quality, but it takes me about 10 seconds to do a water change (when it's in use). Some folks have a more permanent setup. It's completely up to you!
I bought 50 new feeders from Petsmart again and put them in the quarantine tank along with my fishies from my big 90 gallon tank (only 10 left). So I've got them all in a 10 gallon quaratine tank. Kind of cramped in there with an air pump. I added some fungus killing stuff into the water that the fish lady recommended. How long would you suggest they should stay in there before returning them to the big tank? The back of the box says that you can only repeat the treatment every 4 days, do you think I should keep them in isolation for 4 days? doing 50% water changes every day?

This is what she recommended http://www.petsmart.com/product/index.j ... d=11147154. I couldn't find any copper sulfate in any store where I live.
Well, don't eat your fish now!
Quote Originally Posted by http://www.petsmart.com/product/index.jsp?productId=11147154
This product contains a chemical known to the state of California to cause cancer.
Keep out of reach of children. For aquarium use only. Not for use on fish food.
Yes. With that many fish I would try to change as much water as you can. Maybe 90% daily??? Also, don't feed them! The thing is they will produce a ton of ammonia if you do! I know they're really small fish; so, they should be okay. Honestly, if they can survive the chlorine level of your tap water, I would just use plain tap water as the treatment doing 90% water changes daily. Chlorine kills all that same stuff listed there, but it can be lethal to the fish if the levels are too high. This concept is the same as treating with salt. The chloride ions are what are doing the work, but also what are dangerous to some fish (not tilapia, they have a chloride cell).