i have a flower pot goniopora that was great when I got it in April, but won't extend now. I had a bout with red slime in July and that's when it went into seclusion. I treated the tank with chemi-clean 2x and after no change treated the g. to 2 iodine dips 1 per day. It emerged only 1". This week I treated the tank for red slime again, but it only wants to come out 1". What can I do?Also, I've been doing weekly water changes and my parameters are fine. I've got 4- 50/50 VHO lights on it and it's slightly to the left of the powerhead. Help !