jimi thing
New member
Hello, Just have a quick question. I have been cycling my 12g Nano for about a month now and yesterday I tested the calcium and it was about 300, so I added Seachem reef calcium last night before bed. This afternoon I turned the lights on and the water was and still is very hazy, almost like when you first start a tank. I only added a half of a cap full after a water change. I've been using RO water and doing weekly water changes. Does anyone know what could be causing this? Thanks