I just got a red dragon flowerhorn, he is 4 " and hve really nice color. He in a tank that been running over a month. He seem to be happy and very active until couple days ago, he suddenly keep hiding and wont come out when i tap on the tank like he usually does, he is the only fish in that tank btw.he still eat like normal but just not active and color fade sometime but come back 1 in awhile. I have use prime by seahem, the water nitrite and nitrate is safe but alkiliny is very high, ph 8.0, water is really hard. There is another tank have same prob but only 1 fish is stressing, i did 25% water change every 2 days with prime in the new water before add into tank, what can i do to lower alkiliny, nitrite, nitrate? And why does my tank still not cycle even tho it more than a month already?