I have been setting up a 110 for Discus that I was suppose to get the first of the month. They came early. I do not have the 110 ready. I put them in a 30 I had running. The problem is, there are eight of them. The largest is about 3.5-4.00. I just check the Nitrate level and it is going up. I put them in the tank last night. I just added pouch of Nita-Zorb to the HOB filter. I am going to do a 50% change. Any other suggestions? I hope this thing cycles fast.