There's still a difference Steve... U put 240W over 75 gallons which gives 3.2 wpg. If I do the same then it would be 240W over 100 gallons (actually I have twice the length... - a 200 gallon tank) which is 2.4 wpg. Actually since I know the 36W version then I would get even 10% less. Also - I wouldn't feel comfortable having only 6700K blue range FLs - I think half of the fluorescents should be warm white (~3000K). And last - ... do they really last for years???? My impression was that after 6-12 months you get half of the intensity with T8/T12. No? And one very last comment - T5's here in Israel cost less than 9$. Aviel. -----Original Message----- From: owner-aga-member@thekrib.com [mailto:owner-aga-member@thekrib.com] On Behalf Of Steven Pituch Sent: Tuesday, March 16, 2004 3:03 PM To: aga-member@thekrib.com Subject: Re: [AGA Member] Re: fish/plant light -- or - Have you got lots of options or what? > Hi, > > For me T5 means that for the same 4' length I get 54W instead of 36W - 50% more. Which means in a typical case the difference between 2wpg and 3wpg. Can't gain much in space cause I am reflector width limited and am not willing to pay for the special hoods - not yet. > > Aviel. Aviel, If you want cheap you can still get a lot of light with NO Fluorescents. I have six 40W bulbs (6700K) in my home made hood for my 75 gal (240W - 3.2 W/G) for about $150. The bulbs are 2 for $6.50 at Home Depot at last for years. see: http://users.ev1.net/~spituch/Steve's%20Page/Aquarium/hardware/lights/lights.html and http://users.ev1.net/~spituch/Steve's%20Page/Aquarium/Animals/animals.html Regards, Steve P. ------------------ 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/ ------------------ 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/