Originally Posted by Betowess
Thanks for the great post PJAN!! Stunning fixture and tank!! Yes, we've got to find a dimmable computer source for the Tek lights here in the US. Maybe Sunlight Supply is already in R&D on it??
There is a bit of spill with my T5 Tek 4x54s unless the light is really low on the tank. But I'm thinking of constructing a small blind on a couple of hinges or possibly using velcro and to incorporate two LCD moon lights. I spotted some nice moonlights at Reefandmarine.com. FWIW, I think the 4x54 is marginally O.K. on my 90 gallon, but 6x54 would probably have been best, if one has the time for the extra dosing and trimming. On the other hand, I'm getting massive pearling with all four 54 watts running with plus 30ppm CO2.
Thanks again. bob
Thanks for the compliments!
Yeah, I noticed the TEK-light has not very "deep" reflectors. My setup has deeper reflectors and the T5's are beaming real narrow. That's why I decided to have 6 x 54 Watt T5 to have a good spread.
I now work with only 4 x 54 Watt for the time because this tank is running for only two weeks or so and still in the maturing process. I tried 6 x 54 Watt ( at 100%....
), but after a day I already got a haze in the water. UV standing by, but I decided it was better to take it slow and let things mature a bit.
Later I will go on with more light.
I think you will be fine with "only" 4 x 54Watt T5's. A big point is trimming and dosing. I already can throw away cuttings
. There's no point at finding out "how fast the plants can grow". I my opinion there must a balance between healthy grow and trimming - light - dosing.
With the dimmable ballast and computer I kind of "stear" the growth rate with the amount of light giving during " peak hours".
Peak hours are very important : enough light to keep the plants down and bushy. But not too long to avoid weekly trimming.
Some thoughts about T5 written down also in this thread by me :
24" Tek T-5 Light Fixture Review (Future of planted tank lighting)