Help with Halides

[lionspride]

Im gonna be doin a 90gal sps 48x18x24, is 3x400w hqi too much or should i use 2x400w hqi. Both will have 2x65w actinic?

 

[mg426]

How about 2x250 watt ??
3x400 seems like a lot to me, You will have a fair amount of heat to deal with.

 

[OnlyCrimson]

2x250w should be fine. I just mounted my diy pendant over my 45. It's a 2 foot tall tank and it seems like plenty of light.

 

[lionspride]

I just want to make sure i have enough light for a lot of sps. I heard you need a good 7-10 watts per gallon

 

[GSMguy]

400s would be sweet

 

[bergzy]

i have my 110g with 2x250w halide. though it is suppose to be a zoo only tank...sps and a clam has mysteriously drifted in there.

they are doing great with great color and growth.

there always seems to be an ongoing thought for more light, more light and more light...but there is a point of 'too much'.

my personal preference are pendants with an open top for better heat dispersement...but that is just a preference...

 

[dadonoflaw]

yea i think at that depth unnecssary heat issues will be the result if you go with the 400's. the 250's will be plenty