hi! i was wondering if anyone can give me some ideas on what could be wrong with my xenia. it is an established colony that had been doing really well and growing. but the last while they are slowly decreasing and definitely not looking very good. the tank is 125 gallons and several years old. my parameters are all good too. nothing has changed in the tank except for the growth of aiptasia . thats all i can figure out it might be. it is growing all around and in the colony. i know ive read about chemical warfare. could that be whats going on? thanks!