So they say its cyano?

what does coraline look like at first
is it red then purple? i know on my live rock its red but later on turns purple-- maybe im just completely misunderstanding this

 

Hey chap!

Please refer to the following sites:

Site 1 - Wiki

Site 2 - Fossil Coraline Algae

Enjoy!

 

hey there, thanks. would you consider this cyano?

 

Doesn't look like cyano to me

 

thats corraline all right, thats means your tank is comin along well!

 

that's what i thought, but someone else had a picture just like mine and they told him it was cyano. i kept doubting myself and still am. but from what ive seen happen on my other rock, it turned red, then purple coraline grew over it? ive been keeping my calcium at 400+ppm, with a dKH of 8-9, magnesium 1300. not new to the hobby just never really paid attention to coraline. its always been about the health of the livestock. this stuff seems to be invasive on the rock only, and only parts that were brown, and not any corals or existing purple coraline. just by that i can only assume it might be coraline

 

stick you hand in the tank and wave your hand by it, if it comes off easily, its cyano, if it doesnt, its coraline.

 

thanks for everyones help

it doesnt blow off and its not wavy, it feels weird though

 

if it doesnt blow off then its coraline

 

thanks for the help!