Can anyone tell me what this is!!!

[rustdog02]

THis green slime started growing in my tank and I don't knoe what it is?
Orif it's good or bad! any help would be awesome
Thanks, Rusty

 

[Anonymous]

Resize pic & repost. It's hard to see.

Thanks,

 

[Len]

Are you talking about the greyish green mass in the middle? That looks like a sponge to me.

:welcome:

 

[Anonymous]

I concur with "He-Who-Taketh-No-Tank-Pics-Anymoreth."

It's a sponge.

Peace,

Chip

 

[Anonymous]

I agree, looks like a sponge.

 

[Anonymous]

I am going to disagree with the no-camera-owning guy up top. I think it is a sponge. He has no photographic proof. I do if you would like lol.

J/K though. In all seriousness it is sponges. You can ID them by the breathing hole in them.

 

[Joew]

Sponge...I had one on my 90 that was like 2" or so, was a nice emerald green.


Joe W
_________________
Mercedes Benz Vito

 

[rustdog02]

sorry about the first picture being so big. Here is another. And yes I am talking about the green mass on the rock!
I don't know a lot about spunges are the good , or bad what do they do, eat, and how big do they get?

 

[Len]

Sponges are harmless filter feeders. They don't have a max size as they're colonial organisms. I wouldn't expect it to get huge though.

 

[Anonymous]

The entire bottom of all my LR is covered in them. Anywhere that the MH does not directly hit has them covering them. As Len said they are filter feeders. I have three color variations. White, purple and green. Whenever I move a piece of LR it seems they migrate back to the darkside of the rock. I personally have never had any issues with them at all. I don't feed them specifically or really pay them any attention at all.

 

[Anonymous]

They love silica

 

[rustdog02]

Thankyou for everyones help!! I have another question if anyone can help?
In my Tank I have live sand, and no matter how much I clean my tank I alwais have a layer of algea that keeps re-growing like a bed of carpet. I use my vacume hose to try and suck it out but It only seems to
stur up the tank and I end up haveing to scoop it out with a net. And then
in two days time it's back. I want my sand to be clean and it never is

Thanks Rusty

 

[Anonymous]

The only solution is to reduce the nutrient load in the tank. Keep removing the algae, feed less, change more water, skim more, consider a sump filled with macroalgae that can be harvested, ...

 

[Anonymous]

Reduce lighting and feed less and everything SciGuy Said. It's called cyano bacteria and it's a b@tch to get rid of. I had it, got over it after a fine battle.

 

[Anonymous]

Also, boosting your PH, and flow, really helps knock it down (if the nutrient load ois knocked down as well)

 

[waymack97]

i think your rock has a cold just kidding.
_________________
Hare Krishna - ISKCON Forum