you mean can
BIO BIZZ LIGHT MIX,
BIO BIZZ ALL MIX
B&Q COMPOST
PLAGRON ALL MIX
PLAGRON LIGHT MIX
replace Roots or FFOF as a BASE SOIL for making Subcool's Super Soil?
Probably.
what you are looking for in a base soil is Structure.
does it have a good water to air ratio? not too heavy, or soggy. a light fluffy mix is best.
if it dosent drain very well, try adding Coco Croutons or Pearlite.
once you have a good base soil, its time to add your amendments.
8 large bags of high quality organic potting soil with coco and Mycorrhizae (Base Soil)
25-50 lbs. of organic worm castings
5 lbs. of Blood meal 12-0-0
5 lbs. Bat guano 0-5-0
5 lbs. Fish Bone Meal 3-16-0
¾ cup Epsom salt
1 cup Sweet lime (Dolomite)
½ cup Azomite ( Trace element)
2 Tbs. powdered Humic acid
*** If using an RO system add in 1/2 cup powdered Cal/mag
one thing i would add to Subcools Mix is GreenSand, it contains slow release K and micro-nutrients.
as far as the Air Pots go, i have never tried them, but i am a Smart Pot kinda guy and they both use the same process of air trimming roots.
i am a firm believer in root pruning containers, smart pots are just cheaper.
remember that Subcools super soil is only used in the bottom 3/4 of your container, use some base soil for the top few inches to protect your young plants tender roots from burning.