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replacing bulbs

  1. Lighting
    My tank has been up and running for approx 11 months so its getting close to time to replace my bulbs. This is the first time I have had to replace bulbs so any thoughts would be appreciated. Tank:75 gal/ depth is 21 in Clown Diamond Gooby African Red Knob SeaStar Mandarin Coral Frag Lighting...
  2. Lighting
    Ive had my Nova Extreme T5 fixture since around april of 08 and I know Im pushing it for new bulbs, but I have a few questions. *The tank is a 55gal. w/ a few corals (trying to achieve a reef when my paycheck can support it). - Do I need to replace both the whites and the actinics or...