Hey, Im another happy bio-bizz customer. I dont use the bio heaven,yet but have seen marked differences when using top-max and bio bloom, compared to not using them. The top max is great in my view,. I emailed bio bizz with some questions and they got back to me within the day and gave me all the info i needed. and MORE.!!! However,, I have noticed theres not alot of Mg in the topmax and none (or any other micro's) in the bio bloom. My babies had bit of def but A ok now.] Id defo recommend the bio-bizz products for soil and organics. take it easy..