Bristlenose Pleco not eating, possible motor issues?

  • We are currently upgrading MFK. thanks! -neo

Plecostomus_McFlurry

Feeder Fish
MFK Member
Dec 29, 2023
8
5
3
35
Have you tested your water?
Yes
If yes, what is your ammonia?
0
If yes, what is your nitrite?
0
If yes, what is your nitrate?
<5 ppm
If I did not test my water...
  1. ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.
Do you do water changes?
Yes
What percentage of water do you change?
21-30%
How frequently do you change your water?
Every two weeks
If I do not change my water...
  1. ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.
Our BN Pleco, McFlurry, has stopped eating and become lethargic. At first we suspected bloat as she was looking very round. We've been offering deshelled peas to help with the bloat, but she was totally disinterested in peas. It was close to 2 weeks since we last saw her eating. Yesterday she seemed a little more alert after our routine water change and we saw two small poops! So, today we decided to offer her one of her sinking wafers. After a couple minutes she came out of hiding like she was looking for food, but her movements were so quick. She was darting in circles around the wafer flicking up substrate like she wasn't capable of slowing down and kept overshooting where the food was sitting. Before I could record this behaviour, she gave up and stuck to the glass for a while, did some flashing, and then went back into hiding. It feels like there's something more than bloat going on, but we're at a loss at what the problem could be.

McFlurry lives in a 15 gal fresh water tank, at a temperature of 27 degrees celcius. We know the tank is a little small for these Plecos, and we're planning on upgrading as soon as we're able. She's lived in this tank for around three months before the issues started to arise, alongside her tank mate the other BN Pleco, Meringue (who appears happy, hungry, and healthy.) They have anubis driftwood plants in their tank and their regular diet is cucumber, deshelled peas, and sinking wafers. We give them other things to try but they're always slow to try new foods. Our filter is an AquaOne IFXE100 internal filter, and we always vacuum the substrate during a water change.

This is how she's been for the last couple weeks: sitting on the filter at an odd angle.
IMG_20231228_173720.jpg
This was her tummy two weeks ago (I haven't been able to get a photo of her tummy more recently because she won't come up to the front):
IMG_20231217_193439.jpg
More recent shot of her from the top, day of the last water change:
IMG_20231228_192338.jpg
McFlurry in her usual hiding spot, in the bubble stream. This is where she sits currently:
IMG_20231217_192608.jpg
 
  • Like
Reactions: tlindsey
Our BN Pleco, McFlurry, has stopped eating and become lethargic. At first we suspected bloat as she was looking very round. We've been offering deshelled peas to help with the bloat, but she was totally disinterested in peas. It was close to 2 weeks since we last saw her eating. Yesterday she seemed a little more alert after our routine water change and we saw two small poops! So, today we decided to offer her one of her sinking wafers. After a couple minutes she came out of hiding like she was looking for food, but her movements were so quick. She was darting in circles around the wafer flicking up substrate like she wasn't capable of slowing down and kept overshooting where the food was sitting. Before I could record this behaviour, she gave up and stuck to the glass for a while, did some flashing, and then went back into hiding. It feels like there's something more than bloat going on, but we're at a loss at what the problem could be.

McFlurry lives in a 15 gal fresh water tank, at a temperature of 27 degrees celcius. We know the tank is a little small for these Plecos, and we're planning on upgrading as soon as we're able. She's lived in this tank for around three months before the issues started to arise, alongside her tank mate the other BN Pleco, Meringue (who appears happy, hungry, and healthy.) They have anubis driftwood plants in their tank and their regular diet is cucumber, deshelled peas, and sinking wafers. We give them other things to try but they're always slow to try new foods. Our filter is an AquaOne IFXE100 internal filter, and we always vacuum the substrate during a water change.

This is how she's been for the last couple weeks: sitting on the filter at an odd angle.
View attachment 1532475
This was her tummy two weeks ago (I haven't been able to get a photo of her tummy more recently because she won't come up to the front):
View attachment 1532476
More recent shot of her from the top, day of the last water change:
View attachment 1532477
McFlurry in her usual hiding spot, in the bubble stream. This is where she sits currently:
View attachment 1532478
Welcome aboard
How does the poo look? Was it white or stringy?
 
  • Like
Reactions: kno4te
Your welcome!
That's good the poo was not stringy and a solid color.
We were excited to see those poops last night for sure. Her erratic swimming today when we tried offering her food took away that excitement! It's like she was trying to eat but couldn't slow her body properly to get to it.
 
  • Like
Reactions: tlindsey
I’d try some kanamycin and pure epsom salt 1-3tbsp per 5g. Hold off on feedings for a couple of days. If no improvement then maybe gravies or a defect.
 
  • Like
Reactions: tlindsey
I’d try some kanamycin and pure epsom salt 1-3tbsp per 5g. Hold off on feedings for a couple of days. If no improvement then maybe gravies or a defect.
Should we quarantine McFlurry before any treatment? Or would it be safe to treat in the main tank with our other Pleco in there?
 
Treat the main tank. If she has something, they all do.

She looks gravid to me but not sure why she’s flashing unless she has a parasite or protozoan. Is the other one a male? If so, try adding a cave for them to breed in
 
MonsterFishKeepers.com