Thanks, yes im starting out slow as well but def see a difference when i dose vs. when i don’t. Also trying to understand the effects on PO4. Some say theirs go down other say theirs go up due to the F/2.
I've also noticed it helps with nuisance algae in my tank. Not sure why so it may lower my PO4 ive never checked. Ill look into it on my end as well now.