Furan 2 dosage

[fernalfer]

I have furan 2 that i will be dipping my zoas in because of zoapox. Now i read that you use 1 packet for every 1 cup of saltwater. Since my zoas are on a rock and 1 cup would not submerge them all i just want to confirm that if i add 3 cups of water instead that i would use 3 packets of Furan 2?

 

[inthedeep2]

yes 1pack to 1 cup tank water. so 3 to 3.
if it were me i would chip the zoas off the rock if possible .