I've seen many tanks that seem to have very little rocks per gallon. I have about 80 pounds in a 90 gallon tank. Im also having a cyanobacteria outbreak which I think could be due to low flow because of to much rock. Can I take some out to allow more flow. I have a wp 40 and another power head in the tank. You can see a wave at the top. Im gonna clean the tank out then use chemi clean tommorow. Can I go with less live rock and achieve the same amount of filtration? Thanks