Grow Mediums 5gal equiv Ultra Oxy pots and watering

[dreamsofgreens]

Hi all,
First post here, I've been a creeper for many years but finally have something I'm hoping to ask about.

I have an 8 lady garden of different Autos, 6 of which are in new-to-me 5gal equivalent ultra oxy pots from HTG supply (tried to save a little cash vs equivalent airpots). The other two are similar original airpots (I've used real airpots and find they dry out often)

I'm using regular sunshine [HASHTAG]#4[/HASHTAG] soilless, plants are at four weeks and either starting to show sex or seem close. Lights are platinum LEDs (4x P300s) and temps/humidity are fine due to it being winter in the south (68F-78F, 50% RH)

Nutes and additives are Advanced Nutrients (yeah, yeah I pay the piper)

Question is - I've been challenged to find a balance where I feel like I'm adding enough nutes / additives, but still able to water twice a week (pots seem to take 5+ days to feel ready to water).

Would anyone have any feedback on how to water/feed 4 week old plants in larger pots such as these but still both get enough nutrients and additives into the soil without causing the plant to need 7 days to dry out afterwards?

First "feed" was 2L (each containing voodoo,piranha,tarantula,b-52 and a low 1ml/L dose of grow/micro/bloom). Now it's been 5 days and I'm close to wanting to do a "water only" like I usually prefer, but then if I water enough to run off, it could be a week before they are ready for the next feed, causing me to "miss" a week in my schedule.

Maybe the plants aren't at "full size" enough to drink enough to both runoff and dry out enough for twice a week watering? I believe maybe my nute regimen is low and on the safe side, maybe I could aim for one real runoff on switch to bloom and only monitor otherwise (I don't get runoff on a 2L watering, I believe based on initial I might need to go to 3L for any run off).

Thanks all! Sorry there's no pics and to be so wordy.

 

[dreamsofgreens]

I worked through this one myself, I think my personal lesson learned is to gradually increase the water/feed amount when running autos in these larger 5 gal equivalent airpots as the plants grow.

Using the full non-org PH perf. AN line (everything I could get that makes sense) I've had no issues with burn keeping the grow/micro/bloom reasonable (2ml /L) and only going up to 3ml/L full bloom on the plants that were loving it.

The only issue I've been challenged with on this round (my first all Platinum LED grow) is what I believe to be calmag def. Grow/micro/bloom is supposed to have a decent amount of calmag, but 3 out of 6 plants struggled with it. Even providing sensical/calmag once a week at 2ml/L didn't seem to stop them from continuing to appear def (rust spots on leaves). I'm going to start another chat in the Platinum LED section to see if other users will chat about calmag def on autos with all platinum LED grows.

Finally, in regards to the knock off airpots - after comparing the "holes" in the Oxypots to my legit airpots, the holes are smaller (maybe 40-50% smaller) in the Oxypots. I think I may take a drill to them as that may be limiting the "air pruning".