I just added crushed coral in a mesh bag in my HOB filter to raise my PH and KH/GH. PH is around 6.8, KH is 3 drops and GH is 5 drops using the API test kit. I have Amano shrimp, Nerite snails, neons, Otos, Panda Corys & Peacock Goby’s in a planted tank.
My question is how much crushed coral should I use and for how long should I leave it in. Is it something that I can just leave in or do I have to remove it when the water is in the parameters that I want. Also how much do I use or does it not matter? I have around a 1/4 cup in the bag. Thanks.