I used to change 10 percent of my 55 (which equaled out to a 5 gallon change) every friday. I recently noticed (mentioned in another post) a small cyano outbreak. I also noticed that my coraline spread is grinding to a halt. Should I up my changes to 10 gallons every friday? As long as I adjust the water parameters correctly (which i do anyway.) It shouldn't be a big deal......or will it?