yellow, pink,purple and green algae!!!

dustintx

dustintx

Member
My rocks are getting yellow,pink,purple and green algae on them. Has anyone had this many colored coraline algaes in their tanks like me?
 
geoj

geoj

Active Member
Green and yellow I would be suspicious of as they do not commonly survive. More likely those colors are not coralline algae. Then again I have some green spots that look to me to be coralline algae.
 
superman

superman

Member
Can you post some pics? Is the pink and purple algae hard and formed to the rocks? If so, probably coraline, which is good. The green or yellow could be any number of things which pics can help to narrow down.
 
snakeblitz33

snakeblitz33

Well-Known Member
There are green, red, pink, and purple forms of coralline algae. There's also different types of coralline algae like encrusting coralline, plating coralline and even coralline digitata.
The yellow could be a sponge perhaps, or maybe something organic that is dead or dying. A pic would be needed to ID it all properly.
If something is red and looks like velvet and can be easily blown off the rocks with a turkey baster, then it could be cyanobacteria.
 
xcali1985

xcali1985

Active Member
I have all those colors except yellow. I would also suspect yellow as being a sponge, but anything is possible.
Usually my pink turns to purple over time, however, in my tank it is starting to spread more and more.
 
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