Zoa's growing HUGE!!!!
 

OK, I know it sounds weird, but in my 45g my Zoa's are like they are on Steroids. I have taken some and moved them to the 150g and they went small, and short stalks. But in the 45, they are huge. like up to 3/4" heads. and +3" stalks on some. They are overfunning my tank. And the rock, is pretty large, would have to diamantle the rockwork and remove them to frag them. What am I doing wrong, or right? I want them small tho.


The 45g is lit by a 24" 4 tube Tek light, and the 150 is 2 150W and 1 250W MH. params are usually the same on both tanks, waterchanges are done the same. feeding times the same. Could the lower light be making them reach for the sky??? dont really want to run a MH on it, but I do have a 175W I could put on there if needed??

could be high nutrient level

could be, I do have crappy skimmer (Aqua C urchin) and did testing today, No3 is fairly high, allways been battling Cyano in it.
the 150g is only 4 months old.

Zoas dont like crazy amounts of light either....in fact Ive had to shade a few varieties.