Identify Black slime

[Jesses Nano Reef]

Just relocated my failed attempt at a zoa garden to discover this black slime. Any ideas?

 

[Crabs McJones]

Are you sure it's not a black sponge? Doesnt look slimy

 

[Jesses Nano Reef]

It very well could be, I just stumbled upon it. How do I tell, and if so, do I need to worry?

 

[Brad Miller]

Push on it with a rod and see if it feels kinda bouncy
And they have many pores in the black sponge that are very visible

 

[Crabs McJones]

It very well could be, I just stumbled upon it. How do I tell, and if so, do I need to worry?

Best way is to touch it. If its squishy and not easily removed it's likely a sponge, if its slimy and is easily blown off the rock it's likely a slime algae of some type. But I'm thinking black sponge :)

 

[Jesses Nano Reef]

Push on it with a rod and see if it feels kinda bouncy
And they have many pores in the black sponge that are very visible

I would say more slimy than bouncy.

 

[Jesses Nano Reef]

Best way is to touch it. If its squishy and not easily removed it's likely a sponge, if its slimy and is easily blown off the rock it's likely a slime algae of some type. But I'm thinking black sponge :)

it’s not easily blown off, so probably a black sponge. Is it harmless? Or should I take action?

 

[malacoda]

Looks like sponge to me.

 

[Crabs McJones]

it’s not easily blown off, so probably a black sponge. Is it harmless? Or should I take action?

Nope, sponges are a good thing. Filter feeders and a sign of a healthy aquarium:)

 

[Jesses Nano Reef]

Nope, sponges are a good thing. Filter feeders and a sign of a healthy aquarium:)

you’re making me blush

 

[vetteguy53081]

Appears to be sponge. Generally clear or yellow but under low light will darken