Is cyanobacteria dangerous? should I remove them?

[StevenF]

Cyanobacteria ie not just one bacteria. There are about 8000 know species of cyanobacteria and probably many more that are not known Yes some are toxic and others are not. Most are probably not toxic And many are eaten by animals. many fish foods have some and it is also sold as a dietary supplement.

 

[Colin_T]

photograph the stuff in the aquarium, not on your fingers

if anyone needs things identified from their aquarium, photograph the item in the aquarium so it looks normal. this applies to fish, algae, creepy crawlies and everything else.

 

[Barry Tetra]

photograph the stuff in the aquarium, not on your fingers

if anyone needs things identified from their aquarium, photograph the item in the aquarium so it looks normal. this applies to fish, algae, creepy crawlies and everything else.

oh no, I already removed all of it : (

There are more in the tank fill pipe though.