Hello everyone first time poster I am currently growing an auto flower strawberry cheesecake and Jack herer. I started with a 2:1 ratio using Fox farm Happy frog and fox farm ocean Forest using two of the frog one of the forest. So in other words the forest is toned down a little bit by the Happy frog. They’re in 5 gallon fabric pots they’re doing fantastic. I planted them February 20th I planted the seeds right in the 5 gallon container from day one and within 4 to 5 days they were poking out. My question is I do have the fox farm trio. Not sure when to start adding any of the nutrients I’m keeping a close eye on the plants but I don’t want it to burn by adding too early and I don’t want to do it too late. I’m looking for opinions or anybody who has had any experience with this from what I understand is the five or six week Mark you may want to add a little tiger bloom? What are your thoughts?
Get yourself a PPM meter and measure the PPM of the runoff water. Start feeding when runoff PPM dips below 1,000. It will be 4 to 6 weeks from your last transplant before you need to start feeding the trio.
Welcome to the community, exactly as @MidwestGuy stated 
I already have a meter thank you. They are very thirsty girls right now. And doing fantastic I just want to stay above it. Thank you so much
Welcome! Looks like you’re covered! When you start using the nutes, go in at half strength the first time and see how your girls like it. Also, with FF nutes, follow the flush schedule. Shouldn’t have to worry about that for over a month. Good luck and happy growing!
Strongly recommend (if you dont have one) also Ph every thing going in and comming out and pay attention to this with FF soil.
I grow in fox farms. I start giving cal mag at transplant. Just a little half what it calls for. Then straight water for two or three waters. Then again with cal mag. At about the end of week 4 I start the big bloom half strength. I do that until week 6 unless I see a nitrogen deficiency earlier in the lower leaves then i start big grow. When I start 12/12 I give 12 teaspoons big bloom 6 teaspoons big grow 6 teaspoons tiger bloom 6 teaspoons cal mag to 5 gallons of water. Every time the soil is dry and pots are light. At 21 weeks of flower I do what i call a flush. That is I run straight water threw untill I have about a quart of run off. Then I vacuum up the run off and give it a normal feeding immediately after till I get a quart of run off vacuum that up and call it flushed. I should mention that every watering after I start 12/12 I water till I get about a pint of run off. Then after the flush same thing water till run off increasing nutes as I go. I also defoleate a little during veg and a lot just before the flip. Maybe 30 percent of the bottom of the plant leaves and suckers. Let recover then three days later pinch out unwanted leaves 
. Then flip and defoleate 21 days later getting any suckers (unwanted flower site’s) I missed first time around.
I understand you have an autoflower and this would not be the perfect schedule for it but I thought It might give you some insight on the fox farms soil.
Happy growing puff puff don’t pass. Grow enough everybody gets there own.
Ps: sorry it was so long sometimes I ramble.
Oh ya everything is ph’d after nutes between 6.5 and 6.8. Also cal mag is a must with fox farms. In my opinion.
Welcome! I am very new here as well, and I have a similar situation. Using 50/50 OF and HF, and also using FF nutes.
My plan for the ladies, is to give them 1/4 of the dose for the first feeding, and see how they do. I will start this when I technically enter the veg stage. I think thats when you see your first few iconic fan leafs. Once I see a few of those, ill start giving it nutes.
Thats my plan at least. We will see what happens.
Goodluck!
Thats a good plan. Try something and then make improvements as needed.
With autos, depending on how fast they go since they absolutely do their own thing, you might end up with going straight to bloom nutes and skipping the rest.
The pre-charge in FF soils is pretty heavy and will probably carry most autos through veg just fine.
I would second the CalMag though, FF soil is notoriously short on those.
Just make sure you’re ph-ing to the correct range and keep an eye on run off PPM numbers, if they start dropping too much before flowering starts then add, but you might not need the veg nutes at all!
My plan was to start with tiger bloom as soon as I see it starting to flower. Like I said I planted the seed in the same soil on the 20th of February. And the room is starting to stink a little bit and I think I’m at least a week or 2 out before it’s starts
to flower.
Very very informative thank you very much. I’m in week 3 and 1/2 and they are starting to stink a little bit believe it or not. They’re growing really fast.
Girls look good
Plants look good, I agree with all above I run autos in FFOF and FFHF with perlite mix. I start around week 3 with cal mag and normally can make it the first 4 weeks with feeding nutes. But watch your plants they will tell you what they need. I have 1 BB autos that only around 5-6 weeks and is all ready in flower, while 2 others still in veg or pre flower. So if you just watch they will let you know. Also get some Black Srap molasses and that to your water days, it helps feed and keeps all you micros organisms in soil happy , good luck happy growing
Thank you very much for the info. Yes I’m keeping your close eye on what they look like. I’m going to do a flush and see what the PPm is next week. And see if it’s time to add a little bud bloom. I do not have calcium but it’s easy enough to get. My pH at the house here comes in at around 6.7. basically I’m watching them very closely and going to make adjustments as needed right now my lights are set for 20 hours on 4 dark. I know it really doesn’t make that much of a difference with autoflowers.
On the lights every one has there own preference, I run 24/7 for first month, then back down to 20/4 and when you start to see more flower cut back to 18/6. Theory behind that is 1 all living things do need to rest. Also when your plants are in dark during flower they will start production of resin and the resting period helps that. Or something like that, will try to find that post. So in the next week or 2 I’ll dial it back to 18/6
