t5 light, how many bulbs?

[werew]

Quick question?
I have a 65gal 36x18x24. I have (2) 175watt MH retros on the way, will be running 10k bulbs in them. Anyone know how many Aquablue T5's I should use as actnic supplementation?

 

[lunner]

werew

I think 2.

 

[tangov559]

umm.doesnt seem as easy as i thought