I think that with the 120 you would not want anything less then the 175s, even for softies, 120s are pretty deep.
IMO Andrew ----- Original Message ----- From: "Shane Clays" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, November 08, 2001 4:18 PM Subject: RE: Lighting question > Yea. There are a lot of corals that are more difficult to keep under MHs. > Forget any types of musrooms or anything like that. Polyps and such can be > kept if you keep them in a cave or at the very bottom of the tank. LPS are > much more difficult to acclimate to MHs, and IME, dont do well under them > (although some on the list have kept them with MHs just fine). If you keep > LPS under mhs, you have to really give them time to acclimate. Softies can > be kept, but should be kept low in the tank (a couple species do well high > in the tank under mhs though). Clams and SPS will love them. > > That being said, my MH is quite close to the water. About 10 inches from the > top of the water to the bottom of the bulb. Yours will be higher, and that > will help. It is just something to consider when purchasing and placing your > corals. > > IMO > > Shane C. > > > -----Original Message----- > > From: Culross, Andrew [SMTP:[EMAIL PROTECTED]] > > Sent: Thursday, November 08, 2001 2:05 PM > > To: [EMAIL PROTECTED] > > Subject: RE: Lighting question > > > > I'm not sure at this point. I just that the MH provided me with the most > > flexiblity. > > > > Is their anything that I shouldn't keep under MH ? > > > > -----Original Message----- > > From: Shane Clays [mailto:[EMAIL PROTECTED]] > > Sent: Thursday, November 08, 2001 4:02 PM > > To: '[EMAIL PROTECTED]' > > Subject: RE: Lighting question > > > > > > Hhmmm, should be okay. Elevating the hood will help a lot. You can also > > install a nice little icecap fan in it and have it blowing hot air out, if > > heat becomes an issue. What are you planning to keep in the system? > > Dealers > > were right, not much difference in heat. MHs are good lights, but depends > > on > > what you are going to be keeping... > > > > Shane > > > > > -----Original Message----- > > > From: Culross, Andrew [SMTP:[EMAIL PROTECTED]] > > > Sent: Thursday, November 08, 2001 12:17 PM > > > To: [EMAIL PROTECTED] > > > Subject: RE: Lighting question > > > > > > The hood is fairly open (back is open, slats on top) and I plan on > > > mounting > > > the assembly close to a foot above the water. I have 2 40W light right > > now > > > sitting right on top of the tank. > > > > > > Temp right now is not an issue. I have a temp controller that turns on a > > > fan > > > that blows across the top of the tank. This only runs in the summer. I'm > > > praying that I don't need to do more with this lighting upgrade. > > > > > > I talked to several dealers before ordering the lights. Some indicated > > > that > > > the heat differential was not going to be much if anything between the > > > VHO, > > > PC, or MH setup. Since the MH setup is the preferred lighting > > arrangement > > > (don't flame me, it's a general accepted truth !) I went with the MH. > > > > > > Right decision ? > > > > > > -----Original Message----- > > > From: Shane Clays [mailto:[EMAIL PROTECTED]] > > > Sent: Thursday, November 08, 2001 2:10 PM > > > To: '[EMAIL PROTECTED]' > > > Subject: RE: Lighting question > > > > > > > > > There are so many factors, it is impossible to tell. Room temp, temp > > > outside, enclosed or open hood, fans on the hood and or blowing on sump, > > > any > > > direct sunlight, temp of tank right now w/no lights etc. I would guess > > > (and > > > I mean guess), you are going to get 2-3 degrees increase. You can > > counter > > > that with fans blowing on your sump and or in and out of your hood. If > > you > > > already have fans and your temp runs in the high range, you might be in > > > trouble. > > > > > > Shane > > > > > > > -----Original Message----- > > > > From: Culross, Andrew [SMTP:[EMAIL PROTECTED]] > > > > Sent: Thursday, November 08, 2001 12:05 PM > > > > To: [EMAIL PROTECTED] > > > > Subject: RE: Lighting question > > > > > > > > Yep, that makes sense. > > > > > > > > I guess my question is, what do you expect the temp rise to be ? > > Minimal > > > > (I > > > > hope) ? > > > > > > > > -----Original Message----- > > > > From: Shane Clays [mailto:[EMAIL PROTECTED]] > > > > Sent: Thursday, November 08, 2001 1:53 PM > > > > To: '[EMAIL PROTECTED]' > > > > Subject: RE: Lighting question > > > > > > > > > > > > Yea, but only becuase it is more wattage. A watt is a watt, and the > > heat > > > > from one watt is as hot as that from another. You are looking at 480 > > > watts > > > > on the MH, 440 from the VHO and 384 from the PCs, thus the PCs are > > going > > > > to > > > > be the coolest running. > > > > > > > > FWIW > > > > Shane C. > > > > > > > > > -----Original Message----- > > > > > From: Culross, Andrew [SMTP:[EMAIL PROTECTED]] > > > > > Sent: Thursday, November 08, 2001 11:45 AM > > > > > To: [EMAIL PROTECTED] > > > > > Subject: Lighting question > > > > > > > > > > I plan on installing a retro lighting kit into my aquarium hood. I > > > have > > > > a > > > > > 120G All-Glass Modern > > > > > > > > > > I ordered a hood with 2 175W MH and 2 65W PC > > > > > > > > > > In your opinion will this hood increase the water temp more that 4 > > 96W > > > > PC > > > > > or > > > > > 4 110W VHO ? > > > > > > > > > > Andrew Culross > > > > > OPICS Product Center > > > > > 914.821.2572 > > > > > > > > > > This email may contain confidential information intended only for > > the > > > > > person(s) addressed above. 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