Frag tank lighting?

[BlazinNano]

Ok gonna add a frag tank to my setup. Not sure on the length but thinking 12" deep and 12-18" wide. How many T5s do I need. Mainly gonna be chalices, acans, and favias.

 

[JMSKI333]

I would go with a 4 bulb t5 if you only want chalices. Ati fixtures are the cat's pajama's when it comes to t5