Why no purple algae?
 

Hi there.. I see all the pictures around the forum and I see a lot of purple algae around aquariums, especially on live rocks.. Where does it come from? I even had some on live rock in my tank, but it's dissapearing now, since it was there from previous owners.. Any ideas? Am. I missing something?

Its called coraline algea grows with when calcium, alk and the paramaters are in check, it takes a while to grow and get re-etablished if you moved or changed tanks

purple up will accelerate the process ...

Urchins will eat it. Stock lots of urchins. Hate that purple crap!

How do you like red or green coraline?

eats up your calcium , ruins your liverock , runins your equipment , ruins your glass, tiresome to scrape....and the list goes on.

not what i consider a "desirable algae " lol

Zactly!! Awful stuff.

Yep im in same opinion don't like it. Thankfully I have trouble growing it

I actually like it. Lol. Looks cool. Ppl that doesn't no saltwater always ask me y my rock is purple or is it fake lol

Sure, it looks nice, but it smothers your rock. Which then doesn't filter your water very well, and then your expensive corals don't look as good as they could. IT also builds up on equipment and needs to be cleaned. Which is a hassle.