Hi all,

First time grower, running a coco run in the pursuit of immaculate medicinal buds. Learning a lot every day through experience, along with the help of many people here - special shout out to Aqua Man for his invaluable advice.

Got 4x 'Green Crush', also called Green Crack but don't like the association with that horrible stuff. Sativa dominant, seeds from crop king seeds. Germinated 5, 1 was weak and snapped its own cotyledons off trying to get helmet off. One sprouted cotyledons, but after almost two weeks, no leaves. The other 3 were good though one sprouted upside down and had its root hanging out. Turned it around and it's going good, a little stunted compared to the other 2, but who knows if that's related or if it's just a bit 'special' genetically. Sprouted 2 new ones as I wanted to get 5 and had ditched 2, both in warm water, one had split and started forming a root within an hour. Planted it and it was up the next day, and it just goes from strength to strength. The other seed never popped. So now I have my 4, one is a week behind into dirt, but development wise only a few days behind the other 3.

For the first week I didn't give Nutes due to my ignorance. Read that the seeds have all they need for a few weeks, but that's in soil I guess. My plants never really 'suffered', though I did look this up quick when I started to notice some yellowing. The 3 got their first feed a week in (pH'd water only before that), which was the first feed for my little gal, so she's had Nutes all the way through and it shows. Again she might just have really good genetics, but is at least 3 days quicker than the other progress wise. The 3 responded well and got a beautiful vivid green very quickly, and started to show some quicker growth.

I am running a nutrient tank with Canna A+B, started at 1.1 EC, up to 1.4 at this stage, working towards hitting 1.7 from the first day of true veg. pH to 5.7. Last run the EC was 1.3 in, 1.4 out, so in a good range atm. The tank has a fish tank pump with an air ball attached. Pumps out thru 13mm, to an FND system. 25 litres of Canna Professional in each, no Perl/Vermic for this run, will add this next time and compare for ease of watering and results. Water system has timer that can do minutes so once it's dialled in multiple waterings a day are no real issue.

Lights are Mars Hydro TSL 2000 x2, side by side. I have germinated under these, currently set at 30 inches, 25% of max, delivering 230 PPFD at the plants. I misinterpreted some info here as well, and had the lights very close to the plants for a couple of days before I realised. You'll see on particularly 2 of the older girls there is some warping of the first leaf, thought maybe some calcium deficiency in the early days, Aqua Man has said more likely is to do with too much light. I find that PPFD result amazing for such a cost effective light - I got the 2 delivered, from the 7/4 sales, for $420US. When set at max, 14 inches above canopy, will deliver up to 980 PPFD in the peak areas, with nothing below 700, even at the corners. Look forward to seeing how it does, but happy so far. I think the node spacing so far is amazing, even though we haven't got to the multi fan leaves yet. All my spaces at the moment are 5mm (1/5 in.), which I'm led to believe is pretty good. Makes me think we've got lighting just about right for this point.

The small room is all concrete and render so maintains stability incredibly well. Well sealed from pests also. Have fixed and sealed a vent which I was pleased to find connects to the central evaporative air. As it's usually warm here, that is on most of the year delivering cool, dry filtered air to the room. I have then connected the exhaust to an existing disconnected exhaust fan that was also handily in the room. I disconnected the fan, and over the whole I attached a vent outlet I found at the hardware store, upside down against the ceiling. It's screwed straight into the plasterboard which is not perfect but the flashing tape helps support it, and to seal it also. The air is not turned on at the moment, but the suction from the exhaust pulls air through the central air system, meaning that only air which has passed through the filters in that system is entering the room. Couldn't ask for more in terms of environment tbh.

I found during early seed development, just leaving things still kept me at around 65% RH during days, and up to about 83% during lights off (10am-4pm). This was great for that stage, now I'm a bit further on it's time to have the exhaust on, that's a bit high for humidity during a cool period. With the lights on the room gets up to about 77, then down to about 64-65 with lights out. At that temp 83% RH is gonna be a problem sooner than later. So I have the exhaust on now since yesterday. Haven't run it through a lights out yet, but last night, it dropped max temp down to 71, which I could have done without, but RH sits at 55% which is nice and pretty good for that temp, and I've definitely seen already a burst from the plants, especially in terms of 'thickness' - leaves have spread and plumped up more with the constant flow of fresh air, I imagine CO2 ppm has been dropping off without something driving new air through, so they'll be loving it.

Photos attached - love the close up cam on the iPhone :) White spots are splashes mostly, warping on first leaves on 2 biggest girls is noted, have accepted that would be the case based on early treatment, but overall health seems very good. New growth is almost electric green I love it. Love to hear any feedback though or things that you've learned to watch out for. I know these are early days and me and my ladies have many laps of the track still to do but I think with early colour and structure I'm starting with good genes, and I think this early period showing great spacing and development I should be in for a good first run. Cheers all, hope you enjoy the photos and my setup isn't too shoddy :D