Originally Posted by Justintotank
Good evening... I'm confident it's a combination of water quality and light intensity. The older your tank, the better, and preferably the equation for lighting is 3-4watts per gallon provided you have the right light spectrums. Fluvals are not known as great saltwater nano tanks.
Agree with the water quality, but lighting wise, it is hard to say, my zoanth grow like crazy under both direct LED
or shaded area, they are more durable than most of the softies. However that being said, if he is using LED
it has a chance to shock the polyps.
The 3 to 4W is just a general rule for PC
/T5 and MH
. Doesn't work for LED
. If he uses that with a LED
fixture on a nano tank. The coral will melt in no time. From the picture I do see the light are very focus in the middle. I would suggest to move the light a bit higher and do 50% water change to try to lower the nitrate.