Lighting For 90G

[Lokemer]

I am (hopefully) buying a 90gallon tank soon, it doesnt have the best light, only t5, and im looking to upgrade to metal halides. I want to purchase the 250w version of these http/www.fosterandsmithaquatics.com/product/prod_display.cfm?pcatid=19309 clip on lights. im just wondering, how many i should get. i was thinking two, one on each side of my 90gallon, or maybe both in the bac
EDIT, the tank was bought, i cant get it

 

[Morri]

Why would you want to change from T5 they are cheaper to run, you can change the colour easier, most the people I speak to now are getting rid of halides and putting in T5s.

I have T5s 6 x 39w over mine and the results are stunning imo what T5 unit is over the tank now?