Don't do it! Same room separate tents; no problem, its just not good practice to mix soil and hydro. Just my two cents worth, but speaking from experience...
IMO flushing now would would be a good idea. Don't know what size pots you're using but a good rule of thumb is 2-2.5 X the pot size. (I.e. For 5gallon pot flush with aprox. 10-12 gallons of water). After that let it dry and then appl y a light nutrient solution
I've been using FF dirt and ferilizers for years now and have never had a problem. Actually I love it! I go strict by their recomended feeding schedule, except I mix only 70% of their recommended strengh. Through experimenting over several years these are the only ferts I use: FFoF organic soil...
Honestly, I don't see a reason to flush. You're not feeding full dose of FF anyway and if you alternate watering and nutes and have a nice wet dry cycle (3 days) you should be fine. I never flush as long the plant looks good.
When using Neem Oil watch the temps, because the oily stuff burns up the leaves closest to light. Maybe spray before lights off.
When using Neem Oil watch the temps from your lights above canopy. Too much heat and the oil heating up and it'll fry your leaves. Better to spray before lights go out
Yes, the problem with the FF chart is that it's based on the 700 ppm scale, while a ppm meter could be based on a 500ppm scale, meaning that your readings won't match the chart but instead appear way off. So what I do is just multiply the chart defined ppm by (eyeballed; you can use more precise...
When using FoxFarm you have to mix your nutrients as a combination of All 3 (Grow Big, Big Bloom and Tiger Bloom) Depending in what growing stage you're in mix it accordingly. You can download the feeding chart from FF.
Sure, point taken. I 've never used a light meter because. From experience and knowing the specs of the lights I know how high/ low the light shoul be through out the growing stages. I start at about 30-36 inches and in weekly increments work my way down to the final setting of about 16 inches...
This is by fart the Best article about ppm scales
By far the best explanation about ppm scales I've read. I downloaded the foxfarm soil feeding schedule from their site and it was based on 700 scale (it has "700 scale" next to ppm. My tds meter is US based on 500 scale. I definitely would have...