footbag Posted November 5, 2004 Share Posted November 5, 2004 How close should the bulb be from the water? What is the closest it can be. I have a 7g minibow with lots of SPS and Zoos. Link to comment
Samc Posted November 5, 2004 Share Posted November 5, 2004 It can be 4" away from the water. I keep mine about 6" away, but it is over a 29g tank. It really depends on air flow and how hot things get-which can be a prblm on a 7g minibow! Sam Link to comment
JonPM Posted November 6, 2004 Share Posted November 6, 2004 Just put a fan on that bad boy and you should be good at 4-6" Link to comment
footbag Posted November 6, 2004 Author Share Posted November 6, 2004 Sounds good. It was 12" away when I started, but now its closer to 8". The hood I have sits on top of the tank(3" from surface), but I decided to hang it after the upgrade and like the look even better. I think that by putting the 150w there they would get fried. The 70w halide wasn't so strong. Link to comment
bladze Posted November 6, 2004 Share Posted November 6, 2004 You are the 178th person who asked about this. So there are 177 threads about how far MH from water surface. Link to comment
JonPM Posted November 6, 2004 Share Posted November 6, 2004 Wow I just realized it was 150W over a 7gal. Tis mucho. Link to comment
footbag Posted November 6, 2004 Author Share Posted November 6, 2004 Yeah... I've found that Acropora don't color up under 70w halides, but I'm still on a mission to have a thriving SPS nano. As far as stability, which always comes up when you talk about SPS nano's... I've got a 17g refugium/sump. Phosban reactor. I also drip Kalk, and have an auto-top off. The MH is cooled by a fan, and the bulb gets hot, but I bumped the temp up to 80 and 82 in the summer and it keeps it stable. Link to comment
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