How many colors of sponges do you have in your tank?

[Damsel13]

I have 5!

light, light almost clear blue (my favorite)
pink
lime
orange
grey - not so sure about this but it looks like a sponge and acts like a sponge so......

 

[Snowboarda42]

I have a few tiny little pink ones that hang upside down under some of my rocks.

Speaking of sponge, I need to go do my dishes...

 

[redrooster]

I have lime green, and red. I used to have a large blue one but it died. Oddly it grew out of nowhere. I've never even seen one any where else. The spores must have been on the LR for years as thats how long its been in captivity. Also the blue one was neither tree form or ball form. It was a patch with "pillars" growing out of it.

 

[SueT]

I have that grey colored one. It's encrusting the front side of my overflow. I have the yellow ball type spnges and I have 1 thats seems white. It has little things that stick out from the surface.

 

[jesseb]

White - with larger pores, a yellowish fuzzy sponge... a gray sponge that seems to encrust rock under the light... and some bright lime green which I keep removing when I find it - I've seen it grow around corals (frogspawn and anthelia polyp).

 

[burning2nd]

yellow, green... oragne brown, and red

 

[Damsel13]

The lime greem I have seem to not like the light at all and unfortunatly I don't have much coral but I'm going to keep an eye out around my hammerhead now.