Harlequin Rasboras Shimmy Along Glass After Every Water Change.

FishSlime4L

Member
My 10 harlequin rasboras always shimmy when I add water or remove water from the tank. I just added some water due to evaporation, obviously dechlorinating it first, and now all 10 are shaking and shimmying along the glass. Is this normal behavior for them? They usually settle after an hour or so but I’m always worried to lose one during the water changes.
 

MasterPython

Member
It sounds like they are trying to keep up with the current. I don't think it is a big deal.
 
  • Thread Starter

FishSlime4L

Member
MasterPython said:
It sounds like they are trying to keep up with the current. I don't think it is a big deal.
They are just shimmying up and down on the side of the tank. There isn’t really a strong current in the tank and my balloon mollies are doing just fine.
 

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