Question about cycling and bacteria

[Supra]

Hello all, I'm new to the site and to the hobby. I have a quick question. I own a pond and it's common to add good bacteria for the bio- filter. Just wondering why it's not the same way for aquariums? Thanks in advance.
Supra

 

[steez]

You develop good bacteria by cycling the tank, typically you want to avoid adding chemicals to the tank besides a good water dechlor such as Prime. Once you add fish they keep the bio-filter established from their waste.