Need to loose the M/H lights, help me pick.

[Aquattro]

Replace the chiller.

[zv3n]

Originally Posted by Aquattro

Replace the chiller.

+1

[WarDog]

Sounds to me like you have a huge investment in LPS and SPS. I agree with Brad and zn3n, replace the chiller. If you are old school I think LED's would disappoint you and your SPS's.

[spit.fire]

Originally Posted by zv3n

+1

+3

imo your tank would do best wth mh due to the height of it

[Nuttyreefer]

I have 9 Ai over my 300g it is 33 deep and I have light to spare

[NIVLEM09]

+4 you can't replace a technology that's proven.just get a new chiller and your corals will love you for it!i regret switching to LED's

[hfp75]

Kessils with the narrow lens will penetrate down....

Use the A360N if you have a controller and use the A350N if you don't and won't have a controller...

[reefermadness]

A friend of mine has a beautiful tank SPS (with some LPS) using T5 and LED hybrid. Cut your electical and heat.

I think a lot of people get into problems when switching the lighting on an established tank. Even if both technologies work there will be differences in spectrum, intensity, spread which can negatively affect the corals. This is why when switchig lighting you should go slow, better to let some corals get a little darker/brown than bleached, and slowly raise intensity.

[pinkreef]

switch to two x 250watt mh bulbs

[xenon]

Originally Posted by Aquattro

Replace the chiller.

+1.

I have tried almost every brand of LED's and came to the conclusion that there is something missing in the spectrum that corals need to get optimal coloration.

We actually just downgraded from LED's to MH and it was the best move I ever made.

With that said, LPS seem to do just fine under LED. SPS, not so much.