Thanks Scott, It's getting harder of course. But I think I'm ready to hang in there and figure it out. I didn't save the stuff Wayne Jones posted. Probably was more interested in something else at the time like 'Why do my fish keep dying?". Got that one solved. I'll follow up on your leads though. Paula On Sunday 14 March 2004 06:21 pm, you wrote: > Hagen doesn't have a bulb factory -- they have a > manufacturer put thier name on the bubls. That makes it > harder to find out what they are. --Write to hagen and ask > them to cough up the data. Or move on to something better > than standard fluoresecents. > > > RE the normal output 13 watt bulbs, can you fit in a third > or 4th? A pair of those works well on a slow fgorw 12 or 15 > gallon tank. Not so hot for a tank twice that size. > > There are two kinds fo T5 bulbs. The regular standard > fluorescent bulb that's come in a 5/8" diameter and the > High Output bulbs that come in a 5/8" diameter. The 13 watt > bulbs are normal output fluorsecents. All the high > performance hoopla is abouot he HighOutput fluorescents. > I'd go back to the store and explain some of this to the > guy there -- he apparently hasn't done much research at > all, it seems to me. > > You might try some High Output T5s to get up closer to get > a bit more light. Or a 55watt power compact. That will fit > a 30 gal and give more light -- about the same as a 54 watt > HIgh OUtput T5. The 55watt PC can be retrofitted into the > hood the 20 watt bulbs were in. > > Where doesn one find this stuff. They only way to find the > stuff is hunt and hunt (and remember the sites Wayne Jones > ever posted about because he did a lot of hunting re > bulbs). And this info isn't usually readily available for > consumers -- manufacturers don't trust consumers with > objective information -- subjective stuff is much more > effective on the madding crowd. The commerical and > inudstrial pages have info so that engineers and lighting > contractors can design systems for diff applications, like > lighting an office building economically, and fit specific > requirements like building codes. > > One place to look is in the catalogues. Not the consumer > catalogues -- those are noninformative sales pitches for > compact fluorescents and incandescents. You want to look > in the business or commercial catalogue. And sometimes you > have to go to the european catalogue because their is stuff > sold by Phillips, for example, that isn't in the US version > of thier catalogue until a few years later. > > Here is the Osram/sylavannia catalogue, or part of it: > > http://ecom.mysylvania.com/sylvaniab2c/b2c/z_login.do;jsessionid=ID4001DB0. >021826088790573794End > > A 2' High Output T5 fluorescent is rated for 24 watts and > about 1600-1800 lumens. A pair of those might suit you > better than two 13 watt bulbs. Although not a lot more > watts, the high output T5s have more lumens per watt than > standard fluorescents. But they must run on an electronic > ballast. > > A 54 watt High Output T5 is nominally 4' in length, wihc is > to long for your 30 gallon tank. but one that's folded over > on itself, i.e., a PC 55 watt is only 22 inches long. > > I run two 55 watt PCs on my 30 gallon, but it's a fast grow > tank with CO2. If I took off the CO2, I'd drop back to one > bulb or a pair of 36 watt PCs. > > Btw, High Output T5s are considered a "Specialty" bulb by > Osram. > > Is this getting easier or harder? > Scott H. > > --- Paula Hofmann <paula.hofmann@gte.net> wrote: > > Ok, I did some research on the bulbs I have. One Aqua > > Glo and one Life-Glo > > by Hagen. Both T-12, 20w. I have a 30 gal tank. One is > > 5 years old, the > > other 3. Don't know which is which. From what you said > > in your previous > > email these bulbs provide barely enough light, and the > > T-5s will provide less > > for my low light plants. Now that it is spring, I will > > have increasing > > natural light, not to mention sun, until the Fall > > Equinox. I thought about > > wraping the plastic "reflector" with foil to increase the > > light I already > > have. > > > > The T-5 is supposed to be a high-performance bulb. Where > > do you find out > > about lumns on a particular bulb? I went to the website > > on the box and the > > bulb I'm researching is not even listed, much less any > > specifications. I > > also went to a couple of other web sites I know about > > with no luck. > > ===== > S. Hieber > - - - - - - - - > Takashi Amano and More at > the AGA Annual Convention > Nov 12, 13 & 14, 2004 > Crystal City, Arlington, Virginia, USA > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - More reliable, more storage, less spam > http://mail.yahoo.com > ------------------ > To unsubscribe from this list, please send mail to majordomo@thekrib.com > with "Unsubscribe aga-member" in the body of the message. Archives of > this list can be found at http://lists.thekrib.com/aga-member/ -- Peace and love, Paula ------------------ To unsubscribe from this list, please send mail to majordomo@thekrib.com with "Unsubscribe aga-member" in the body of the message. Archives of this list can be found at http://lists.thekrib.com/aga-member/