What are these that came with the plug?

[canadianeh]

 

[andrewey]

Chitons

 

[canadianeh]

Chitons

Are they good?

 

[El_Guapo13]

Are they good?

Eat algae and detritus. Just like their snail cousins.

 

[andrewey]

I don't want to ruin the fun and spoil the answer for you

 

[canadianeh]

Well I don’t like they way the look so I will take them out *phew phew*

 

[ZipAdeeZoa]

Chitons, Reef safe grazers and a cool part of your tanks biodiversity (if you want them). I'm hoping to get some with my next coral order ;Hilarious

 

[canadianeh]

How about these dots looking things?

 

[Willu]

If you're talking about the black things, they look like vermetid snails, you should try to remove them.

 

[canadianeh]

If you're talking about the black things, they look like vermetid snails, you should try to remove them.

The black things are vermetid snails? Vermetid snails usually have pointy tube almost like tentacle looking thing.

how about the rest of the stuffs below the black things?

 

[ZipAdeeZoa]

I believe the pink/red structures your seeing are Foraminiferans which are harmless, here is an article about them

http://reefkeeping.com/issues/2003-07/rs/index.php#:~:text=Foraminifera%20with%20the%20first%20skeletal,areas%20where%20sponges%20are%20common

.