QT tank switched to a DT

[CleverBs]

So I have a 20 gallon QT tank I used one time for a copper treatment. I was wondering if there is a way I can clean the tank so that the copper levels are gone so that I can make it a FOWLR tank? No corals would go in the tank.

[EriksFish315]

Empty the water out and wash the inside with fresh clean water?

[CleverBs]

I don't think that removes copper

[austinsdad]

I've heard it can still leach from the silicone seals. Hate to say it but, might not know for sure until you try an invert. Try crabs or shrimp.

[CleverBs]

Yeah that's what I have heard as well that the silicone will absorb it but hopefully beings there was only copper water in it for 2 weeks and the and was brand new that the silicon didn't absorb much.

[cerulean_blue]

I have a 29 tank that I've medicated for ich once about 5 years ago when I was using it.

Well I decided to revive the 29g, and had the same question about copper. I am less worried since it was so long ago for me, but you may want to try this...I'm not sure if I will do it as it seems like a lot of work and I already have the substrate in the tank.

How to Remove Copper From a Saltwater Aquarium | eHow.com