I dose abt 15ml for my 250l tank daily via my kalkwasser topup. Nutrient is undetachable. Increase my ca and kh at the same time.
Only drawback is I need to use a small fan to increase my evaporation rate.
Don't give up. The parasite is still in your tank. Let your tank stable a while more. A month or so and get stable clown fishes like those in coral farm to start with. They usually last very long in fact. They are my longest surviving fishes.
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one of my fav