thanks for the resposnes.

i think i'll switch over to an 18/6 light cycle soon now that i have a timer that will actually work.

2nd question - when to fertilize? i was planning on waiting till the seedlings outgrew the jiffy cubes (i heard 2-3 weeks on that normally) and then transplant & start fertilization after it gets over the shock. i have several 6" clay pots i was planning on using - will i need to transplant again?? since im growing in an enclosed space (old 125ga saltwater aquarium) and only have 2-3' vertical space, i'll be bending like mad so they fit well.