Was wanting some advice in water changes on the Red Sea max 130. How much and how often. I'm running the stock skimmer an upgraded pump. For filter media I have biohome and live rock. Chemi pure elite , purigen bag, and I use polyfiber fill to trap all debre when I run the mp10. Runs fairley clean. I have a large anemone , 2 snowflake, like 50lbs live rock, 2 in sand bed , hammers , Gsp, frogspawn, a few snails and crabs...