10 ppi vs floss/wool for polishing

[Commander Shepard]

It's not very popular here, but I tried some purigen recently and that thing does wonders. Didn't really have any problems with clarity, though I did have some tannins, so I put it in more out of curiosity than any need. Only 100g into my 90l. Water clarity is on a completely different level now. Works better than carbon or zeolite when I tried those (I was using them to remove some medicine). Doesn't replace filter wool for fine particulate but that should only be around during first setup or if you disturb the substrate.

 

[Bradders]

I just find it really difficult to gauge how to use it to keep water from going ‘ foamy’

What do you mean foamy?

 

[Commander Shepard]

Just saw that you mentioned foam. That usually means you have an ammonia or other water quality problem. Floss is not going to help with that, you might need more plants and water changes.