RiskyPack, the pearlite is nice, it does make things look cleaner, and makes the photos easier to "read". I had a mild knat (or whatever type of tiny little flying bugs they were) problem a few crops ago
and I noticed it was always worse right after watering,
they'd go crazy for the moist top layer of soil, I bought stickytraps (which cut them down greatly but couldn't get rid of them) and since I had some excess pearlite left over after mixing 20% into the FFOF I spread 3/4 of an inch out over the top of all my plants and that, along with the traps, shut the knats down completely.
(use a 1/4 inch layer now) I don't know what type of bugs they were but apparently they were laying thier eggs in the soil and the pearlite layer kept them from being able to get into the dirt to lay them, or kept the babies from getting out. The pearlite breaks up the light, and that keeps the top 2 inches of soil from baking to cracked dryness, more moisture held for the roots this way. When transplanting to bigger pots you can see roots growing up out of the soil into the pearlite. (the pearlite all falls off when you flip them upside down to gett'em out.) The plants can use more of the soil in the pot this way.
Time4Plan-B They are Lowrider2 strain. On 16/8 lighting. Though as you can see from todays pics. I have gone to the HPS.
Time for some catchup.
(11/19/09) Transplanted #4, 6, 7, 9, 14, 15, 17, 24, 25, 26 and 27. Each given 400 ml room temperature tap before transplant. Each bedded into larger pots, with previous rootballs covered completely under 1/2 inch FFOF, and watered again with 1300 ml room temperature tap. Then layered with pearlite.
(11/21/09) Early morning glass/light cleaning. (normally done on Thursdays but went to bed after transplanting and completely forgot on Fri) Bulb changed from 400Watt MH to 400Watt HPS. (accidentally ran HPS bulb for 20 seconds with switchable ballast set to MH,, then remembered and shut it down to flip the switch,,, appears to have done no harm)
(11/21/09) All plants are given 200 ml room temperature tap just before night. Lighting schedule changed to 12/12 until morning of 11/26/09 (Five 12 hour nights)
(11/26/09) Light schedule changed back to 18/6.
(11/27/09) All plants given 1.4 liters room temperature tap.
New Photos. 11/27/09 001-004 (30 days old) taken after/while watering. 11/27/09 005 in the closet after watering and 11/28/09 001 (31 days old) is today just after I re-arranged them.
Enjoy