my tank is up for 3 weeks my calcium is 600 i have mushrooms that were on live rock is this going to hurt them amonia nitrite nitrate all seem ok ph 8.2 8.3 tank still cycling have 2 damsels 3 scarlet hermits 3 snails 6 blue hermits 30lbs. live rock tank is 75 gal. have sump with 15lbs. live...