What causes an bacteria bloom?

[Pete Hammersley]

Hi,

I’ve recently had a small bacteria bloom in a fairly large 900 litre tank. Nothing major, and the tank is still only 14 ish weeks old, so I decided to wait it out. I upped my dosage slightly of microbacter7, and 3 days later is 90% gone.

so I know they are not the end of the world, I know they pass fairly easily, just out of curiosity and potentially to tweak my daily / weekly maintenance rhythm, what causes them?

Are there proactive steps to take to control them? Or is it just the inevitable microscopic battles that need to fight them-self out?

 

[Hemmdog]

An abundant food source or temp increase will usually trigger one.