it is. Here is a picture of bluesky ingredients. If you haven't bought a soil yet, and your plan is to recycle it, a mineraly mix similar to this in the base will give you a balanced start on the rebuild.
Here are the Bluesky ingredients.
We can definitely talk about spikes and stuff
Here is my main recipe. It's not too far off Bluesky, so its a good match.
20 gals recycled soil
2 gals coco
7 cups prilled dolomite or 3.5 cups powdered
1 cup blood meal
.5 cup bat guano
.5 cup glacial rock dust or .5c rock phos
3 cups feather meal
3 cups bone meal
1.5 cups greensand
.3 cups SRP
2 cups organic basmati
.75 cups gypsum
3 cups kelp meal
2 cups alfalfa meal
2.5 cup oyster shell flour
and here are my flower spikes.
1 part feathermeal
1 part bat guano
1 part bone meal
.5 part kelp meal
.5 part alfalfa meal