white Algae

[Satish]

Could you please Identify this for me? It has formed on just one Rock-the one at the top, closest to the Light. I have set up a New Reef Aquarium ( 90 Gallon ) . It has no Fish or Corals as yet, because I am still cycling it. No NH3,but Nitrates are 20 ppm,so I have been doing frequent water changes ( Four times in the last 10 days) .

Not sure if this is relevant, but I have my AI prime LEDs turned on for the past week ( 10 hrs a day) just to practice the settings.

 

[Webslinger]

pineapple sponges...common on new setups

 

[Satish]

pineapple sponges...common on new setups

Thanks I will look it up

 

[Auquanut]

Pineapple sponges often pop up in new tanks. Harmless filter feeders that will most likely die off in time.
Welcome to R2R by the way!

 

[Webslinger]

Pineapple sponges often pop up in new tanks. Harmless filter feeders that will most likely die off in time.
Welcome to R2R by the way!

That's what I said.