HELP! Slug Lookalike in my tank

[elsehuang]

HELP! Slug and unknown thing

Anyone know what is the thing in my tank? Slug?
Will it harm my fishes and corals in the tank?

And what is the circled thing? It doesn't move and looks hard.

 

[ezy33]

Looks like a type of Sea Slug. AKA a Nudibranch.

 

[Darylb]

Mr x gave me some good advice I had a slug looking thing in my tank and I got told to remove it but its not harming anything so I'm keeping it anyway what he said is to look at it this way you could be the only one who actually has one of these in your tank and how cool that is

 

[elsehuang]

Thanks for the answers!

What about this? Anyone know what is it?

It doesn't move and i have more of this popping in my tank!
Not as hard as i thought when i poke it. Neither does it look alive?

 

[suew]

Thanks for the answers!

What about this? Anyone know what is it?

It doesn't move and i have more of this popping in my tank!
Not as hard as i thought when i poke it. Neither does it look alive?

Hi,

It looks like a bristle worm, can you not pull it out,how many others do you have.