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Two Par30s over a 20x20x12 not enough?


Partially Submerged

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Partially Submerged

I just upgraded from a small 4g pico to a 20x20x12 tank. I had been using a Par30 over the pico with great success and thought adding a second one would give me enough light in the new tank. But now I am realizing that the light spread of the Par30s seems just not good enough and I'm losing one of my favorite coral (a birdsnest) even though it's close to the surface.

 

I already have the goosenecks for the Par bulbs, so I would really prefer not to add an entirely different lighting system. Would two Par38s be adequate, or would it be just the same underpowered lighting with slightly better spread?

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BilabongAthlete

Yes, the reef par38s would work very well on a tank that size, and bring back the life of your birds nest but I would get them soon. Good luck !

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Partially Submerged

Those look nice. :D But they are barely stronger than my Par30s, and one of them would still be rather tight for a 20x20.

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A pair of Par38's would work well enough, but if you want greater control, than a Kessil A160W, Radion XR15w, or NanoBox Duo would be your best bet, although a bit more $$$...

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Partially Submerged

Yeah, I think I'll go with the Kessil. Until then, I'll make do with what I have. I added a 4W Coral Compulsion LED spotlight to the two Par30s. It's directed right at the SPS corals and should help keep them going until I upgrade. Thanks for your input, all!

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  • 2 weeks later...
Partially Submerged

After some morre observation, I am relieved to report that none of the corals has actually died. In fact, they have been doing surprisingly well with the two Par30s. Still, I would like something with a bit better coverage and power.

 

I can't seem to find the perfect light, though. The Kessils cast shadows, the Nanobox Duo and Radion are a bit too expensive, the Razor and Prime get pretty mixed reviews. Are there any alternatives that I should look into?

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