What are these?

[jsantoli]

I have these small puffy looking things, they were in my nano also but I see more of them in the 90. Just curious if it's something I shouyld be worried about.

 

[jsantoli]

The one by the ric's always is in the same spot, I knocked it off a few times in my other tank and it grew back in the same spot

 

[panmanmatt]

Pineapple sponges. Usually a sign of excess nutrients in the tank. As they use up the nutrients they will disappear. Harmless life forms.

 

[jsantoli]

Thanks Matt, I can resume breathing haha

 

[Phyl]

The stuff on the overflow resembles green star polyp (without its polyps). Is it a purple mat?

 

[panmanmatt]

The stuff on the overflow resembles green star polyp (without its polyps). Is it a purple mat?

They looked like GSP to me too. I thought he was referring to the white things mixed in with the polyps.

 

[redfishbluefish]

As a newbie, I had no idea what I was looking at in the pictures above…I saw a ric in pic 1 and a powerhead, star polyp and coraline in pic 2. Simply put, I was confused…not very difficult to do.

Searching the net I found a pic of pineapple sponge and now everything is crystal clear. Now I see what Panman is talking about. Here’s a pic of pineapple sponge (size of a grain of rice or slightly larger):

Hope this helps others who are in the same boat I’m in...mentally sinking ;D!

 

[calaxa]

At first, I thought Joe was refering to the ric (guess asking for clarification whether it was a ric or yuma).

I never knew they were called pineapple sponges. I used to have tons of them when tank was new and one day, all gone.

 

[jsantoli]

They are GSP on my overflow, but what I was referring to what the white things that Matt identified.