Weeksii with strange gill issue

NoahKingGroh

Feeder Fish
Sep 17, 2021
3
5
3
20
I recently brought home a fat head bichir (Poly. Weeksii) into a tank with a almost exactly the same sized buettikoferi (Poly. Palmas Buettikoferi) and a syno schoutendeni. The fat head has been eating well but it looks like he (I think) was warring with the other two bottom dwellers for space and has a slight tear in one of his pectorals. What is more worrying is that under one of his gill coverings he has something poking out that doesn't look like a fluke, but almost like a single external gill poking out. He didn't have this earlier and is well above the size where his external gills should have receeded. The fish is still behaving totally normally and I can't find any information on large parasites such as that. Any insight would be much appreciated.
 
  • Like
Reactions: tlindsey

tlindsey

Silver Tier VIP
MFK Member
Aug 6, 2011
20,295
20,373
1,660
Ohio
I recently brought home a fat head bichir (Poly. Weeksii) into a tank with a almost exactly the same sized buettikoferi (Poly. Palmas Buettikoferi) and a syno schoutendeni. The fat head has been eating well but it looks like he (I think) was warring with the other two bottom dwellers for space and has a slight tear in one of his pectorals. What is more worrying is that under one of his gill coverings he has something poking out that doesn't look like a fluke, but almost like a single external gill poking out. He didn't have this earlier and is well above the size where his external gills should have receeded. The fish is still behaving totally normally and I can't find any information on large parasites such as that. Any insight would be much appreciated.
Welcome aboard

After 5 post you will be able to post a pic. It could very well be a parasite. Most wild caught bichir may have parasites on them.
 
  • Like
Reactions: kno4te

NoahKingGroh

Feeder Fish
Sep 17, 2021
3
5
3
20
I work at the fish store I bought him from and he was quarantined for 2 weeks before it came into the store and has been in the store for another 2-3 weeks so I was fairly confident that any issues it could have would have already cropped up. I cant post a picture quite yet but it almost looks bristleworm-esque and was curious if anyone had seen anything large like that. His head still looks completely fine and not pock marked like what usually happens with flukes and other parasites. Will definitely be keeping an eye on it because so far I can't find anything like it on the internet.
 
  • Like
Reactions: tlindsey

Caveden

Redtail Catfish
MFK Member
Jul 21, 2020
1,304
1,338
154
22
I work at the fish store I bought him from and he was quarantined for 2 weeks before it came into the store and has been in the store for another 2-3 weeks so I was fairly confident that any issues it could have would have already cropped up. I cant post a picture quite yet but it almost looks bristleworm-esque and was curious if anyone had seen anything large like that. His head still looks completely fine and not pock marked like what usually happens with flukes and other parasites. Will definitely be keeping an eye on it because so far I can't find anything like it on the internet.
Ouch. Quite hard to identify without a pic
 
  • Like
Reactions: tlindsey

DMD123

Bronze Tier VIP
MFK Member
Oct 23, 2009
6,878
8,196
478
Lakewood, WA
N NoahKingGroh , Pics would help, but with weeksii they are know to keep external gills for a long time. This was a pic of my old weeksii at 7" with quite large external gills showing. It was not until about 13" did they fade away, even then there was a bit of a 'nubin' for a bit there.
dsc03910.jpg
 

NoahKingGroh

Feeder Fish
Sep 17, 2021
3
5
3
20
DMD I think you are right, I'm now quite sure it is one residual gill. Idk why its on one side but not the other but that is certainly what it is. Interesting that the Weeksii keep those gills for so long. No other Poly. I've had has had external gills past about 3".
 
zoomed.com
hikariusa.com
aqaimports.com
Store