i need to add to my clean up crew right now i have 3 hermits and 1-2 snails i feed 1 cube of brine shrimp with spirulina soaked in garlic i feed every other day and my skimmer is rated for a 65 gallon tank and i have a 29 gallon tank i am doing water changes every other day. the polyps on it are fully extended sometimes at night they close up even when the lights are on. everything else in the tank is fine I have an open brain thats fine and various polyps that are all fine