Hitchhiker & Critter ID

Need help figuring out what something is? Post a thread with a photo! ID your hitchhikers and critters here!

Reef by Steele, Pods Starting @ $12

Is this some type of scallop or clam?

Replies: 17

Views: 517

Tube things on underside of rock

Replies: 4

Views: 334

ISpeakForTheSeas

Can you help me ID this slug

Replies: 1

Views: 184

ISpeakForTheSeas

Micro Brittle arm or something worse?

Replies: 2

Views: 265

Going to restart a tank (#3) with what I learned over the past couple years, but I need to understand this issue

Replies: 6

Views: 269

What is this white grass looking stuff?

Replies: 1

Views: 203

Is this a majano?

Replies: 1

Views: 228

Fish/ shrimp looking things?

Replies: 6

Views: 190

Is it a sponge of some description?

Replies: 4

Views: 352

Emerald Green Crab

Replies: 2

Views: 212

BubblesandSqueak

Replies: 3

Views: 195

What Is this? Safe or not?

Replies: 4

Views: 289

Mysteries in the tank x3

Replies: 4

Views: 284

NewReefAdventure

Question

What kind of algae?

Replies: 3

Views: 174

Hitchhiker urchin- what breed is it?

Replies: 5

Views: 255

Replies: 12

Views: 730

White substance growing on frag rack

Replies: 1

Views: 226

ISpeakForTheSeas

**HELP PLEASE** Nudibranch or Sea Slug and is it friend or foe please and thank you??!!??

Replies: 2

Views: 326

ISpeakForTheSeas

Identifying something on my hammer and leather as well

Replies: 3

Views: 121

White tubes on rock

Replies: 10

Views: 537

Reef by Steele, Pods Starting @ $12

Please Introduce Yourself Here!