Just recently had an invasion of algae growing on the glass, some green and brown spots, and the dreaded Caulerpa that was hidden in my ball of Chaeto. Is there a good way of countering the algae growth? My snails are doing close to nothing. I checked all the parameters and there's a tint of phosphate in the water. I obviously don't have the room for a tang to eat away the algae so is there anything I could do on my end along with a water change?