okay i really need some adviced my tank nitrate was a little high so i did a 25% water change i rinse that stuff inside my canister filter i know that canisters produce alot of nitrate but i didnt know until i bought the filter anyways i have a live rock that had a mushroom and it died so i dont think my water is in great condition even though my clown fishes havent died,i want to know what should i add to my water for my calcium,nitrate,nitrite, can be good enough for my mushrooms and future corals dont die on me. if someone can give me a weekly plan on what should i buy to add to my water to make the water condition good that would be very helpful thanks