is this red algae?

hi,

a while ago, i had red spots on the sides and back of my tank, the type you see in lfs by the return opening.
i took it off with a scrubber, and i had to SCRUBBBB.

anyway, is that red algae? it hasn't grown that much anymore. my parameters are in perfect condition.

thanks.

 

hard to say without a pic

 

do you mean cynobacteria?

 

cyano would have moved easy. it is probably red coralline.

 

sounds like coraline to me too, dont you like coraline algae?

 

I have a tom of red coralline and forever thought it was cyno. It its every hard to scrub and thought i was doomed by impossible red slime. mine is all over the corner flows mostly they are almost totaly covered by it but there is only a few pieces on the rocks