I was using 4 x 54watt t5ho on my 90 gallon, 3 of which are 6700K one is 10000K. This works out to about 2.25 watts per gallon. I have found that even with pressurized CO2 and a regular dosing regimen this is still way too much for me (I started having algae issues). See Hoppys chart on T5 lighting - these bulbs are very powerful.
24 watt 10000k t5 ho aquarium light bulb - Catalina Aquarium
i actually veg with the 10000 kelvin t5's, bud. my plants all seem to be really stocky but healthy. i am leary of trying the 6500 bulbs since i don't have a lot of height to work with in my tent. even my sativa plants were short but robust. still had the thin sativa leaves though. bottom line on the t5's for flower for me is they work. if you are strapped for funds on this grow, the bulbs are cheap($7-$9 each) so for an 8 bulb fixture if you go with what jaam is doing, you can probably flower for around another $60. i don't get a gram per watt but i was close my last grow(about 10 oz's using 300 or so watts). that being said, i am interested in trying some of the led's a lot of folks here have but what fun is it if you can't tinker with stuff? Not hijacking at all...as you said its pertinent information! Im currently vegging 2 ea. clones GSC and Strawberry Cough and the 6500k T5's right on top of them has them very happy and popping all kinds of nodes.. If I decide to go cheap this time I am assuming that its best to SCROG or LST these? How are the 3000k bulbs on the electric bill?
24 WATT 10000K T5 HO AQUARIUM LIGHT BULB - Catalina Aquarium
I found a coralife 30" 2 bulb HO t5 that is 10000k. They want $20 bucks for it and its 2 miles from my house. My questions are.... Can I put 6500k bulbs in them? Has anyone ever used 10000k on seedlings? If anything it would be a decent experiment for a few seedlings.
24 WATT 10000K T5 HO AQUARIUM LIGHT BULB Close Window.