I started double dosing FWS just to be extra cautious even though I don’t see any signs of flatworms. And lots of reports say acros love FWS. Plus KZ says it’s fine too. With that said, I need to keep an eye on Iodine. I have ICP kit that just arrived today. I should just do it the way SBB and @AKL1950 Test iodine and buy the 3 separate parts.Yes this was with dosing both. So i stopped dosing seachem just to see how low it will drop just doing FWS. I get my new ICP this coming week so it will be a month of data