This only happens if you have either a new tank with zero biological action or are dirty tank.
The FIRST bacteria to populate any system is Heterotrophic bacteria this is water born and multiplies rapidly, this bacteria is what you see in new tank syndrome known as cloudy water. This bloom only lasts a few days to a week while the Autotrophic bacteria start to colonies.
Once there is no more water born food for the Heterotrophic bacteria it will die back within hours.
So in a mature system you should not see Heterotrophic bacteria bio blooms unless you over feed or have poor husbandry.
If you do its not a bad thing in fact the complete opposite, it shows there is bio mass in your system that needs to be addressed.
Typically you will not see this bio bloom unless you have a new tank.
My tank just cleared over night!
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