turning a freshwater tank into a saltwater tank..

Hey guys atm I hhave a 180 g tank that's a frshwater I'm converting to a saltwater, my question is how long would I have to wash it so all the copper is all gone? And is there any medicine to remove copper from the tank. And with 2 rena xp4 filter be enough for filtration I cannot make a sump iim going to put roughly 180 lbs if live rocks and about 2" sand bed.

 

im sorry but the only way to get copper out of the tank is take out odd of the slicone. very difficult project to do

 

There are conflicting reports of the copper seeping into the silicone and can be released over time, but I am unsure of the impact since it would be pretty minimal, but harmful to certain creatures such as corals. What did you put in the tank that had copper, medications?

Maybe somebody else can speak for me here.

 

I use the water from outside which has copper tubing. Idk if that helps..

 

anyone knoww? please help me!!

 

It is good to be concerned about introducing copper into a saltwater system, especially if you plan to keep any inverts. However, unless you medicated the tank with copper, it is highly unlikely that much if any would build up from a water supply being fed by copper pipes.

Did you medicate the tank with copper? If not, then I think you will be safe.

Carbon will remove copper slowly, so will a Polyfilter brand filter. But if you're really concerned, I'd run some Cuprisorb in line with the filter for a few days with clean, fresh water treated with magnesium (epsom salts). The magnesium will help bond the copper to the water (if leached into the silicone) and the cuprisorb will remove it from the water.

You will want to discard the cuprisorb before going salt, but you could run a new cuprisorb filter after the saltwater tank is set up and running...

But again, if the water used in the tank just passed through copper tubing once, you're being overly cautious... I'd just run carbon and not worry about it.