Micro and bloom IS lucas formula Elmer,but in coco it's recommended to go with 6/9 instead of the 8/16 that Lucas calls for since coco has plenty of P in it and holds in to it.
G`day Jnugg
I guessed it was GH formula .
Yes I understand the lower K[ not P] . The coco holds it in .
For a newbie I`d stick with perlite . The summer is coming in the Nthn Hemisphere shortly .The heat can lead to complications more easily in coco .
Perlite is a lot easier to manage for inexperienced growers .
That`s why the Hempy Bucket is so popular, its simple . Don`t make it more complicated than it needs to be ...
Thanks for sharin
EB .