Metal Halide height?
Hi everyone, I picked up some el cheapo ex supermarket metal halide lights
at a flea market with the external ballast thingies and was wondering what the general consensus is as to height placement above the cover-glass. I've only got a 4300K in it atm and will upgrade the light fitting to over 6500K pref 10000K when I find an affordable outlet. Can these lights give fish cataracts or other eye problems ie when surface feeding they have to look up? |
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