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Old 08-05-2009, 09:40 PM   #1
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Metal Halide bulb

Hi there:

I am about to replace my stock bulb in my Aquamedic. It's a 150W 20K AB. What do you recommend? I heard a lot about Phoenix and Reeflux. Any thoughts?


Phosphate: .05/ Nitrate: 5/ ph: 8.09
Salinity: 1.026/ Alk: 9/ Calcium: 450
Mag: >1280/ T: 78-79F
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Old 08-05-2009, 10:28 PM   #2
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Here's the Performance Results for all the 150w MH bulbs Sanjay tested. I don't see any results for the AB 20K for a comaprison tho. The Phoenix are listed and so are CoralVue (Reeflux).
PPFD is a measure of PAR, so that's an important thing to look at.
CCT is the actual Kelvin color temp of the bulb.
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