Originally Posted by
forddna
http:///forum/post/2593172
Since I am limited to mushrooms, I am going to try a non-photosynthetic. I figure I'll try a sun coral or two, since they seem to be beginner-friendly. (yes, I am doing my homework before purchasing)
The only thing I'm not being able to find info on is whether I could keep a couple of sun corals with some mushrooms.
When I started my 45 years ago I had two factory lights, then upgraded the bupbs and finally retrofitted the fatory shells with PCs. I had plenty of mushrooms, softies and one type of ric, which at the time I thought was a mushroom (ya learn a lot about this hobby in 10 or so years). I can speak for zoas as I have just started with them.
Your tank height 21" is in yuor favor. At the time mine was 36". You hay see the PCs heat up yuor tank if there is no space between them and the glass top.
Can you fit a second strip on the top? I would go actinic in the second one or possibly 50/50.