Sorry I am a newbie to saltwater and am getting and reading a lot of conflicting thoughts on water changes. 55 gal. tank, crushed coral bottom, 25 lbs live rock, 4 hermits, 2 snails and 3 three damsels. Been running for 3 weeks and have addes a week of stabilty. No skimmer No what do you recommend for water changes as rocks are blooming and I,m being told chande 10%-25% water now as I am burning up the gills of my fish. Help I don,t know who to believe As some say no for at least 6 weeks and also do not need a skimmer if just gonna have fish. Thank You for your help Judy



