Raising temps is risky and works well for fw
, not for sw
As for the bottle stuff, years ago I used a simular product in a fowlr
system. I think it worked but only after using two bottles of the stuff. I can't even guarantee that it was what got rid of the ich since it was such a prolonged process. And for the price of the two bottles, I could have bought two QT tanks.
Not to sound harsh, but for the health of your fish, looking for short cuts is only going to give you more headache/heartache. It will also have you very frustrated, cause both you and your fish more stress than necessary and costing you way more than you would need to have spent than to just treat them right from go.