what is the best bacteria?

[tangoclong]

I still wonder to use two types of bacteria as microbacter7 or nitribiotic of tropic marin for my tank. Whether someone can give advices for me?

 

[SlugSnorter]

I still wonder to use two types of bacteria as microbacter7 or nitribiotic of tropic marin for my tank. Whether someone can give advices for me?

I like Microbacter, but there shouldn't be too much of a difference