Temp 78 to 80 F
8.2 to 8.4 but try to keep it consistant
nitrate below 10 This is more critical with inverts to be lower than that
calcium 400 mg
/l . important for inverts and corraline growth
phosphate low to zero
phosphate is usually the cause of higher algal growth. it is added to city water to make it safe for drinking, as well as in some flake foods.
If any of your water values are out of check esp nitrate and phosphate start to do water changes more frequently and feed less.