Kenny, how is the tank coming along now? Are things starting to improve? I hope so. Again, I think I would let things settle down for awhile. Give the tank a chance to stabilize some. 8 weeks is not very long for the tank to stabilize. It is still going through its stages of cycling/curing. I am one that likes to give things time to "do their thing". It will go through a diatom stage and/or a cyano stage, etc. I try to wait it out. I add a few snails, crabs, etc., but I usually don't add chemicals, if I can help it.
Again, I think you should just wait for things to stabilize a little. I would keep up with the water changes and try not to add too much else.
Sorry for your losses, hope things are going in the right direction now.
Good luck, Frank