what the heck is this?

[Poseidon84]

saw this growing in my tank today. any idea what it is? looks lite white mushrooms and other white stuff.

 

[easternreefer]

sponge?
white triangleish thing in the center correct?

 

[Poseidon84]

that and the other milky white stuff as well.

 

[Maritimer]

For now, it does look like a rather bleached mushroom coral. The other two ... I'm a lot less certain of.

~Bruce

 

[Poseidon84]

For now, it does look like a rather bleached mushroom coral. The other two ... I'm a lot less certain of.

~Bruce

well it would make sense for the coral since my rocks came from a crashed tank. and my lighting is not optimal to sustain coral at all. im just fascinated that it even began to grow. and im thinking the other stuff may be macro algae going sexual. it very small so i think ill just remove it.

 

[Mr. Bill]

FTR, there are thousands of species of sponges, most of which have not yet been identified. It's fairly common for an unknown species, or maybe even a few, to land in our tanks via live rock, but they're harmless filter-feeders that are usually fairly short-lived; as the tank matures, it becomes too sanitary to support them.