This is my first anemone, green E quadricolor. The tank inhabitants are a starry blenny, six-line wrasse, 2 true percs, 2 peppermint shrimp recently added. The tank (20 gallon) stays at a constant 78 degrees, ammonia, nitrites, and nitrates all 0, 2 65 watt PC bulbs, 1 50/50 super...