helpme74
Member
Two Little Fishies Kalkwasser Calcium Supplement this is what I’m adding to my top off water. Any helpful advice. I don’t want to kill my fish. I started out with 4 gallons of water adding 4 tsp Kalkwasser to the ro/di water letting it set over night and then only sucking the water out not the bottom stuff. Then adding one gallon of water making 5 gallons of top off water. This is hooked up to a float switch. I'm using a 5 gallon water jug