biobizz products

[Nima_orange]

Hey i am going to use biobizz light mix as a starter and a finisher. For one autoflower and using Just grow and bloom. I know there is also alg-a-mic and topmax and root juice. Is there anything i could add to my soil mix or anything else i could use to use instead of these products? I am fine with buying grow and bloom but these extra products i dont want to get due to a budget and i dont want to spend 40 dollars on top max when i could just add something simple to my soil something like bat guano or molasses

 

[Nima_orange]

Like if i used Grandmas molasses dissolve 1 tsp with 1 gallon of water and use this spray once a week is there anything else like this that i can use instead of topmax and bio heaven. Would i be able to finish a plant using Just grow and bloom? thanks