Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
On the 10 oz package/container it says the 10 oz's equal 1 unit. They recommend using 1 unit for tanks of size 0 - 40 gallons, 2 units for tanks 40 to 100 gallons, and 1 unit for each additional 25 gallons. So for a 150 gallon tank they recommend 4 units which is the equivalent of 4 10 oz containers.
I use it cause when I had a nitrate problem in my 55 it helped out alot and made my water really clear. So know that I know how good it is why not run it on my 120.
I use it to help keep water clear as I like to sometimes feed phytoplankton which can slightly tint the water green. The CP and my skimmer help keep the water clear.