Hi,
On the way to start a 3ft tank, preparation is taking forever, now got dead coral rocks, but want to make sure its not coppered... so one of the reefer friend suggested, looking for polyfilter, the one at polyart is $16 for a 4x6 "
Can some one give me a small pcs for couple of dollars, or any other suggestion to check for copper??
Right now the rocks are in fresh water dip.. !!
Thanks