ProMix Moisture Potting Soil NPK

[Kirka88]

Hi Im rather new to growing autos. I have been growing photos indoors/outdoors for a fair while. I have some new seedlings in 3 gal pots in promix premium moisture potting mix. It came highly recommended from a friend who runs a local gardening club for starting seedlings b/c supposedly its very low in nutrients. Along with FFHF it's been my go to soil/potting mix for photos with happy results. Since it appears autos are a tad sensitive to nutrients does anyone know the NPK for this potting mix?? I asked them but no reply and searched here as well as online.
Beyond that I typically use fish hydrolysate as fertlizer for photos Im curious how this will work with autos. Im tempted to start with 1/8 to 1/4 the amount I use with photos.

 

[Davey420]

I run FF HF , it’s npk is 30-30-0 I use terpenator a mild nutrient npk is 0-0-4 and I have good results light is 18/6

 

[Kirka88]

Thanks!

 

[Davey420]

Thanks!

I get the terpenator from Amazon

 

[Kirka88]

The problem I have is the promix moisture potting soil bag has no npk value unfortunately (unlike the HF). Can't figure why they wouldnt just put the analysis on the bag or website

 

[Davey420]

I don’t know why they do things like that I’m looking for a soil change my self

 

[Kirka88]

I don’t know why they do things like that I’m looking for a soil change my self

The thing is it's approx the same cost for 2 cu ft as FF HF. However unlike HF I've never opened a bag of this promix moisture potting soil and ever seen a fungas gnat (plus it has a wetting agent).I hate those little devils.
Years ago I was doing the old high times Sea of Green (don't ask how many plants Hahaha).
I bought a cheapo bag of potting mix and it was infested with them. I was new and they completely wiped me put mother plants and all by the time I had a clue what was happening.
Now I add mosquito bits every time when I Xplant and it's a big help.

 

[Kirka88]

Heard back from Promix. They said there is no added fertilizer at all and the NPK is 0 0 0

 

[Davey420]

I almost bought soil like that by accident you have to run nutrients with some types like fox farm bush doctor it’s basically the same scenario

 

[Kirka88]

I almost bought soil like that by accident you have to run nutrients with some types like fox farm bush doctor it’s basically the same scenario

Lol I was just now thinking since I started them in a keg cup of FFHF then filled the 3 gal grow bags of the 000 promix I should probably fertilize. They're like 14 days old and look healthy growing well. I'm thinking like 1/8 to 1/4 strength nutes