live rocks changing colour??

[raza]

hey guys today i woke up and saw that my live rock had little purple and green spots on it and it was also on the shells that are on the bottom of the tank what is this?
also around the spot were the bubbles come from in the tank the rock has become this red ish colour
the last picture is what the "normal" live rock looks like
also if its bad what should i do about it
its a 30g with 2 clowns, 1 anemone, 3turbosnails, 3 electric blue crabs, & 5+ spiroid worms
sorry about the bad focus

all the shells on the ground were white before

 

[Qube]

Looks like coralline algae to me. Comes in many different colors such as red green and purple.

 

[orca67]

Not an expert for sure but it dose look like coralline algae to me as well.

 

[54seaweed]

I'm seeing reds greens blues yellows purples and whites in my tank and I love it , everyday you don't know what you'll find , Also I added a set of LEDS and between the Coraline and the LEDS at night the rock comes to life with color especially when the other lights are off , and getting to see all the critters come out from hiding

 

[raza]

are they harmful to the tank

 

[Qube]

are they harmful to the tank

Not at all. Lots of people buy products that promote the growth of coralline algae, I just prefer to let it grow on its own. If it starts creeping up your glass, you'll want to scrape it off, unless you don't mind not seeing inside your aquarium....

 

[raza]

Not at all. Lots of people buy products that promote the growth of coralline algae, I just prefer to let it grow on its own. If it starts creeping up your glass, you'll want to scrape it off, unless you don't mind not seeing inside your aquarium....

LOL ok just making sure cuz my anemone poopd last time and killed everything in the tank so i wasw just making sure is wasnt that agian