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32w on 10g too much?

Discussion in 'General Plant Topics' started by km9172, Jun 2, 2009.

  1. km9172

    km9172 Guest

    Local Time:
    9:13 PM
    I have 32w CF over an (odd size) 10 gallon tank. The light is about 2" from top of tank. I'm thinking this is way too much light for a "low light" setup.

    Tank Size: 18w x 11d x 12h
    Light: Current Satellite SunPaq (20") (normally 40w CF, but I have a 32w in there).

    The biggest question is: Can I stick an 18w CF bulb in there? When I looked at the ballast, it had 40w/32w on the sticker. I like the look of the fixture, and I have not found a T8 fixture that can go over open water (which I think would be ideal). I'd prefer to go the Aquasoil / light water column dosing method (which will involve replacing the substrate, ie tank rebuild)

    Currently, I am dosing Excel, and have slow, but steady algae growth. Light is on 6 hours/day. Moderate planting, high flow via Rio 50 powerhead (but will need to slow it down when I go to low going to get community female bettas)
  2. Philosophos

    Philosophos Lifetime Charter Member
    Lifetime Member

    Mar 12, 2009
    Likes Received:
    Local Time:
    3:13 AM
    That'd be a 100% over-watting. With CF, I'd almost worry about the bulb exploding. Bulb lifespans will shorten as you push wattage higher. If you like the fixture, get a new ballast for it. You could probably retrofit a T-5 or T-8 in there that's about 18w as well.


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