hi i am currently using kent marine phosphate sponge also i am dosing vodka as well phosphates are low but i know i have a problem have 77x turnover rate with power heads do not feed but 4 days a week sparingly recently bought 200 blue leg hermits.Metal halides are just going on 6 months old 14k.Run a Euro reef Cs6-3 skimmer on a 120 tank.Have been dosing vodka for 3 weeks plan on doing up to 2 months to see if it makes a difference.Weekly 20% water changes with rodi water. Any suggestions would be appreciated.Maybe zeolit if this doesnt work?