The dosing instructions go on a "per 10G" dose.  I was using this on a 10G and ramped up from 1.25ml each day until I hit the 5ml per 10G dose.  At 2.5ml my fish started to act strangely...should have reduced the dose then.  By the fourth day 4 fish had died.  Three of those fish had shown no signs of disease as I was treating only 2...which are still alive.  Seems like it "attacked" the healthy fish.  The remaining ones are still covered in ick and my xenia is barely hanging on.  Snails all curled up and dropped off the glass and rock on the day I added the full cap (5ml).  I would go with a half or quarter dose and REALLY watch the reaction in the tank.  I've now been doing daily water changes and things are SLOWLY getting back to normal as the medicine is diluting.  I will only be using this as a dip if I ever even use it again.
The dosing instructions go on a "per 10G" dose. I was using this on a 10G and ramped up from 1. 25ml each day until I hit the 5ml per 10G dose. At 2. 5ml my fish started to act strangely... should have reduced the dose then. By the fourth day 4 fish had died. Three of those fish had shown no signs of disease as I was treating only 2... which are still alive. Seems like it "attacked" the healthy fish. The remaining ones are still covered in ick and my xenia is barely hanging on. Snails all curled up and dropped off the glass and rock on the day I added the full cap (5ml). I would go with a half or quarter dose and REALLY watch the reaction in the tank. I've now been doing daily water changes and things are SLOWLY getting back to normal as the medicine is diluting. I will only be using this as a dip if I ever even use it again.