black, brown, green PUFFY white!

[tyrel]

My tank has many unusual visitors. Ive got brown gunk, black gunk, green gunk, and puffy whiteish puffballs.

Could anyone tell me what they might be? Are they good or harmful? Friend of foe? And do snails or certain fish eat them?

(my tank has been unbalanced lately.)

thanks
-tyrel-

 

[Jchillin]

From your description, it sounds like you have several types of algae...beard, hair, etc.

Some regular PWC's are in order if this is what it is. Does the black/brown stuff appear similar to rod like shaped?

 

[tyrel]

no, there are just brown and black patches.
Are any of these alges harmful? Do snails or fish eat them?