Lighting Help

[Chago09]

ok I have a 90 gallon standard 48" tank. I currently run a 6 x 54 watt T5 TEK light system. I want to really grow SPS now so I wanted to upgrade. I have a chance to buy a 400 watt MH 18" pendant. If this was about 18" above the water, would this be a huge upgrade from my T5 and would it be sufficient to grow SPS? or would I be better off buying 2 x 250 watt MH?

My tank has the brace in the middle like most standard tanks. Would this be a conern with the single 400watt?

[JenniferL]

Sorry to jump in on your thread, but I have the same tank and just purchased a 2X250W MH, should be here next week. Just curious as to what the replies will be

[chris88]

2 250mh for sure but i also think with great t5 fixture you would be fine.

[viperfish]

I have the same tank. I use 2 250 watt Aqua Medic pendants with Phoenix 14K bulbs and I get really good SPS growth and colour. I think 400 Watt would give you heat issues. My lights are about 10" above the water. I keep the Acros in the upper third, Stylos, Digis, and Birdsnests in the middle third, and monti caps in the lower portion. There are a lot more all over the place but you get the idea.

[fishytime]

no need to switch lighting at all......Im running 6 bulbs o T5

[Chago09]

Originally Posted by fishytime

no need to switch lighting at all......Im running 6 bulbs o T5

I know but I want brighter lights that shimmer. 2 x 250 watts would easily be brighter then my 6 bulb T5 right?