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#1
11-03-2007, 04:13 AM
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Installing higher wattage lights...
I'm upgrading my MH lights from 175w to 250w. What precautions should I take. Should I just shorten the photo period for a while? Or is there any need since it's not that much more wattage? Is there anything else I need to consider when increasing the wattage?
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#2
11-03-2007, 07:23 AM
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Hmm yeah hard to say how much the impact will be. Potential things that could happen are an algae or cyano bloom (temporary - it would settle out), increased heat, and of course light shock.
Two ways to help soften the transition: 1) Keep your photoperiod the same, but cycle your lights on half hour intervals (30 minutes on/30 minutes off). After a couple days, make it 45 minutes on, 15 off; and a couple of days after that you can get rid of the off cycles. 2) Another alternative is layer sheets of eggcrate, and pull off one layer every couple of days.
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-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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#3
11-03-2007, 08:00 AM
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If you're using a fixture that hangs from the ceiling on adjustable cables, I would just raise it up say 6" higher, and then just gradually lower the fixture back to the desired position.
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#4
11-03-2007, 01:44 PM
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Just a thought wouldn't turning your lights on and off that many time greatly reduce the life of the bulb.
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Equipment Red Sea Max Livestock Corals Purple Mushrooms, Kenya Trees, Fish/Inverts Brittle Starfish,,Long spine Urchin,Snails,Crabs, Snowflake Eel,Coral Beauty,
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#5
11-03-2007, 05:21 PM
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When I went from 150w DEs to 250w DEs, I shortened the photoperiod by a couple of hours & raised it back a week or so later. The increase in light didn't seem to have any negative effects on the corals. Not sure about everyone else's experience, just posting mine.
Anthony
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If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!
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#7
11-03-2007, 08:20 PM
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Might be a lot of effort and after reading Anthony's post, wondering if was necessary, but when I picked up a clam and frogspawn that was kept under 2x150W for years and placed in my tank (2x250W) placed piece of light diffuser (eggcrating) on top of the tank and over the new additions. On the diffuser did something like 15 panels of window screen and removed one every day or two.
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