|
Hi Tanya
[welcome]
The leathers of the Lobophytum group are normally photosynthetic dependent and need stronger light than some of their cousins. However, 175 watts of MH on a 55 should be enough to maintain them.
They do like fairly high circulation rates and will suffer if kept under low flow conditions. They are sensitive to nitrate levels and it should be kept under 2 ppm as N.
After a coral dies back it is unusual for it to regrow in the dead area. Like a plant (corals are animals however) it will regrow above the already dead area if conditions are right. I would suspect high nitrate levels are the reason your coral is suffering and further water changes may help it survive.
__________________
"Leading the information hungry reefer down the road to starvation"
Tom
|