Yeah, I've been thinking about making something similar for my L.B.o.D grow, except it would need to go deeper into the coco for a more thorough watering.
If you're not bothered about watering drain to waste - Autopots could work well for you as coco wickes well.
I've got a really cool autopot guide (from super grower hansbricks) that uses coco if you'd like it!?
From here:
https://www.autoflower.org/threads/hans-autopot-grow-and-show-gorilla-glue-red-poison.55181/
HANSBRICKS RED POISON & GORILLA GLUE AUTO POT WITH COCO GROW
ALL PHOTOS ON SHOW ARE GORILLA GLUE
These Autopots work well with pretty much any medium but for best results I’d definitely recommend using them with Coco. I’ve been mixing in around 20-30% perlite my previous grows but trying out straight coco this time around since I don’t think it’s really necessary with this medium.
INITIAL WATERING - SEED NOT UP
I watered both pots initially with about 1.5L of 5.8 pH water with Voodoo Juice and Cal-Mag at 1ml/l. Both are currently just under my Apollo LED running 24/0 for first few days then will switch to 20/4.
Seed Up For Three Days Picture
Day 6
Gave them their first feeding yesterday with 0.5ml/l Sensi Grow and 2ml/l Voodoo Juice (plus cal-mag as usual). Each pot got about 750ml of water.
Day 10
Things seem to be moving along just fine with these... Will be giving them their next feeding tomorrow and will bump it up to 1ml/l on the Sensi Grow.
Day 15
Good looking start to these so far... The GG is already looking promising, quite a bit bigger than the RP at this point. Just gave them another feeding after taking these pics, still same feed as last time. Another 5 days and I'll get the Autopots turned on.
Day 19
Good growth last few days, also both have showed sex already... Gave them another feeding last night, now at 1.5ml/l Sensi Grow and Cal/mag. I've also started adding the Silicate as well, starting at the minimum dosage which is just 1.5ml per 4L. I plan on getting the Autopots going tomorrow and will also add in the Mars LED.
Day 21 TURN ON THE AUTOPOTS
Filled up the res with about 15L to start, current feed is 1.5ml/l Sensi Grow and Cal-Mag plus the Silicate at 1.5ml/4L. I've also started adding the Terpinator at 2ml/l and the Drip-Clean (1ml/10L).
Day 28
These are really starting to take off now... always amazes me how quickly these plants can grow.
Filled up the res with another 20L today, bumped up the base nutes to 2ml/l, everything else same as last feed.
Day 32
Really picking up the pace now... only been 4 days since last update but there's been substantial growth so time to update again
Res was empty this morning so they're definitely increasing their uptake (20L in 3.5 days).
Filled up about 25L this time, still 2ml/l Sensi Grow, probably switch over to Bloom next feed. Increased Cal/Mag slightly to 1.75ml/l and Silicate now at 2ml/4L.
Day 36
Had to fill up the res again today... Made up a 30L batch and switched over to Sensi Bloom Coco now (still 2ml/l), bumped up the Terpinator to 2.5ml/l and also started adding Bud Candy at 1ml/l.
Day 40
I filled up the res and have starting adding Big Bud as well at 1ml/L as per usual, everything else is the same... These girls are quite thirsty going through about 6-7L a day now.
Day 49
Things are looking good and the buds are filling out nicely now. I'll be away for a few days so I filled up the res with about 35L yesterday, feed is the same as last update.
Day 54
Well both plants looking okay today... I had to tie up several of the GG branches though cause they were still falling over. Also did a big defoliation on her today, removed probably two dozen leaves to really open her up and get some good light penetration to the lower half.
I switched out Big Bud with Overdrive a couple days ago... It's looking like the RP will get another week of feeding then I'll start the 10 day flush, the GG will likely get at least 2 more weeks before flushing.
Day 61
Alright bit of an overdue update been really busy lately... ended up chopping the RP on Monday, not overly happy with how that one turned out... I'll get the final harvest and bud pics of that up later this week though.
RedPoison got a good few ounces despite not being up to Hans usual monsters.
GorIlla Glue chopped nine days later - huge harvest
plus more - check out the journal!!
https://www.autoflower.org/t...nd-show-gorilla-glue-red-poison.55181/page-26
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Thanks Hans !! You Rock