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View Full Version : Which new t5 bulbs?


nctinter
12/03/2012, 01:15 PM
I need to replace my t5 bulbs. They are about a year old. I want to get the most growth out of my corals. So here is what I have now... Tank is 84x24x29 high. Running 8x54 bulbs staggered. It is a peninsula so the 4 outer bulbs are aqua blue and the 4 inner ones are blue plus. Good reflectors with ice cap ballasts. The lights are about 9 inches from the water. I mostly have just soft corals. Should I go with this same configuration again? My corals have pretty minimal growth. Thanks in advance..



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rtparty
12/03/2012, 04:15 PM
In all honesty, your money is better spent on an all new setup. Ice cap ballasts are terrible for T5 bulbs. They overdrive them and bulbs need to be replaced about every 6 months assuming they are being properly cooled. Also, you don't have enough coverage with only 8 bulbs staggered the way they are.

I don't think new bulbs or a different configuration will fix anything.

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nctinter
12/03/2012, 04:45 PM
Thanks for the reply. I was thinking about redoing the lights. I really want to stay away from mh's though. What ballasts would you recommend? What configuration. I see a lot of people who switched to led going back to halides so I don't see doing LEDs.

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rtparty
12/04/2012, 01:21 AM
That large of a tank is tough with T5 only. For an all T5 setup you should be thinking almost 16 - 36'' bulbs. Electricity wise you are almost the same. 8 bulbs being overdriven is close to 640w if I remember correctly.

16x39w is 624w but now you have 16 bulbs to replace!

3x250w halides in good reflectors could cover that tank with enough PAR for softies.

Or you could run a nice T5/LED mix. Use 8x39w bulbs and add some led fixtures or strips.

Just some ideas. The t5/LED mix would be my choice.

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Michigan Mike
12/04/2012, 03:22 AM
Metal halide with a light mover.lol

Michigan Mike
12/04/2012, 03:23 AM
You got a pic of your setup?