View Full Version : led vs. t5 halide

09/30/2017, 08:03 AM
New tank new light. Well the new tank just does not do nearly as good as the old one. Old tank had cebu sun fixture 250 halide 4 t 5. the new tank has Maxspec razor. This is the only variable I can say is truly different. Same reef keeper, same ro unit same sump etc. Is it possible it really is just the light.

09/30/2017, 08:05 AM
New tank is set up now 10 months.

09/30/2017, 08:34 AM
You realize, this is an incredibly loaded question? :D

Is feeding different? Flow? Bioload? Coral selection? Coral placement?

How are you defining a tank doing "good?"

There are about a billion factors at play here, but certainly the light is an important one, in terms of spectrum, intensity, and spread/diffusion.

09/30/2017, 09:08 AM
yes its possible its just the light..

09/30/2017, 09:30 AM
Possible. Maybe even plausible. You would have to keep everything constant (almost impossible in this hobby) and put a new light over the tank and see if things change

09/30/2017, 09:41 AM
I say that it is the light. That being said, what corals are you trying to grow? For some reason there seems to be anecdotal information that a new tank has a difficult time growing SPS even with all the "right" parameters.

I have an SPS tank and my experience started with MH and when LED became popular I tried them (AI Sol and then Sol Blue) I had three across my 180 and eventually went to 5 in order to get better coverage and try to eliminate dead spots. I eventually said "this just ain't working and went back to MH with very good results, but for heat and cost I thought I would try T5. The results were good but I couldn't get the color I wanted (not the the color of the corals but the visual appearance to my eye.

I now have 3 MH (250 Watt radiums) and 4 ATI t5's and everything is great. I like the appearance and the coral look good and are growing very nicely.

When I sold the 5 AI LED's that pretty much made the switch over a no cost transfer.

09/30/2017, 01:35 PM
the tank was mostly sps it has cebu sun light over.
2 part dosing, faunna marin 3 part dosing additive
Just seems like the corals do not really like the new light. I know reef keeping is not a exact science, but seems like the led light is a limiting factor.

<a href="http://s382.photobucket.com/user/eralff/media/DSC_0460.jpg.html" target="_blank"><img src="http://i382.photobucket.com/albums/oo268/eralff/DSC_0460.jpg" border="0" alt="Parital tank shot photo DSC_0460.jpg"/></a>