Swollen belly on Stonogobiops nematodes

[Schnizzle]

Too many common names for this guy. I go with High Fin Red Banded Goby.

This was my first marine fish and is still my favorite. It's been almost a year since I got it. "Mr. Gobes" I'm am curious if this looks to be a problem like constipation or if "Mr." might be "Miss" and is egg laden? The swelling is right around the anus much like our guppies when they are about to birth. The lump and markings from it are perfectly symmetrical from side to side.

Swimming fine.

Eats well, if it cant get a piece due to competition, I'll target feed two NLS pellets or a mysis shrimp. It lives with an a. Randalli so I like to make sure the fish can eat and do it's job.

Parameters:
7.9 dKH
1.0264 d SG
.1 ppm PO4
5 ppm NO3
0 NO2-
0 NH3
435 Ca
1425 Mg
8.1 PH

No new additions since my 78 day crypto eradication process

Sorry for the pic quality. It's fast and a bit reclusive so I had to take a video and just grab screen shots.

If it is useful I'll upload the vid to YouTube and post a link.

 

[reef lover]

Looks almost parasitic...
@Big G
@HotRocks

 

[Big G]

Well, there's a few possibilities for what you are seeing. Could be rectal prolapse, an abscess, tumor, or eggs. There's not a lot you can do for any of them. Eggs will be expelled or absorbed into the body; rectal prolapse and abscess can be helped with good variety of foods with vitamins and great water quality; tumors not much you can do. Here's a link with a few pics to help you perhaps on what you are seeing:

Fish Disease Index - Pictorial Guide

Pictorial Guide to Marine Fish Diseases Use this guide to find a picture that most closely matches your fish's symptoms. Click the link, if available for more detailed information on the disease and how to treat it. Ich (Cryptocaryon Irritans) One of the most well-known parasites in the...

www.reef2reef.com

 

[Schnizzle]

Thanks for the input!

 

[Schnizzle]

Mr. Gobes has been MIA since around the 24th. I wasn't too worried at first as the entrances had filled in some. It disappears for several days at a time every now and then. Last night the shrimp was halfway out, cleaning house and the goby was not present. This has not been the case since they met.

How long would you (anyone with experience) give before writing him off and looking for a new goby?

Hopefully this post is needless and Mr. Gobes will be out and about soon, but I have a feeling not...

 

[Big G]

Sorry, but a week and a half is a long time. Hope I'm wrong.

 

[Schnizzle]

I’m pretty sure it’s gone. I just scanned through a 30 minute video on the tunnel entrances and only saw the shrimp peek out of both. On the bright side I’d imagine it’s keeping the shrimp fed for a good bit, continuing its purpose. It just bugs me not knowing what happened.