Hitchhiker. How long have I not noticed him?

BRS

fachatga

Well-Known Member
View Badges
Joined
Apr 6, 2021
Messages
593
Reaction score
916
Location
oak park
Just did a water change and vacuumed part of my sand bed. Must have unearthed this guy. Noticed a new shell moving around a few hours later. It was out of place. I know what my CUC looks like. I know what kind of snail this is but the thing is I’ve never bought one. Got here somehow. I was just surprised how big it is. I had this thing get into my tank and it sat in the sand and got pretty big before I noticed it. So I figured I’d pose the question: what’s the biggest thing you found in your tank you didn’t put there? How big can a hitchhiker get before we find them? Thankfully these guys are good. Wonder what else is hiding
B1CD3FC0-7EC6-4178-8C0C-B1E512B19EF1.jpeg
 
BRS

TnFishwater98

Well-Known Member
View Badges
Marketplace Rating
View Shop
Joined
Nov 7, 2017
Messages
746
Reaction score
1,026
Location
Nashville TN
It took me 8 months and I discovered this Cephalochordata. Saw him move inside a hole in the LR a few times but finally got a picture.
If this isn’t a Cephalochordata please let me know.

352CE143-440A-40B5-B3D4-16649E641087.jpeg 3FEE42D4-7FB8-47A0-B05D-A6EF97FDD672.jpeg 0A1ECE3E-A6DE-4FA0-8CEF-EAA0B74BF019.jpeg 5C32C8DB-D540-483B-BDFE-FC2D6ACDEF3B.jpeg
 

TnFishwater98

Well-Known Member
View Badges
Marketplace Rating
View Shop
Joined
Nov 7, 2017
Messages
746
Reaction score
1,026
Location
Nashville TN
Actually just found this! Thought it Looked like a baby limpet but it had a orange skirt? Soft shell but a circle tip with same orange. Is this a flatworm?

06FC9AE8-6D9C-4C38-90EB-54841A0919E8.jpeg
 

TnFishwater98

Well-Known Member
View Badges
Marketplace Rating
View Shop
Joined
Nov 7, 2017
Messages
746
Reaction score
1,026
Location
Nashville TN
I wasn’t trying to highjack your thread. Thank you for posting. I went to my tank to look after I read your post and found that. I started a new post and hopeful get clarification soon.
 

robbyg

Valuable Member
View Badges
Joined
Sep 8, 2019
Messages
2,164
Reaction score
2,710
The biggest thing has been Octopuses that must have been Penny sized in the live rock I dived up. I did not see that first one until he was about 6-8" across.

The most common thing you will find are massive Bristle worms. I think anyone who has had a tank for several years eventually finds a massive one that is 10-12" long. I have seen some posts on here of ones much longer than that, maybe 20"
 
BRS

Have you ever grown your own live aquarium food?

  • YES and it was a success (tell us in the thread)

    Votes: 36 25.2%
  • YES but I couldn't sustain it long term

    Votes: 22 15.4%
  • NO, I tried but couldn't

    Votes: 6 4.2%
  • NO, I have never tried

    Votes: 78 54.5%
  • Other (please explain)

    Votes: 1 0.7%
SR
Top