Pregnant Or Should I Be Looking For Illness?

[Judmacaroni]

Hi just looking for a wee bit of advise from anyone with experience of Weather Loach

I keep 3 weather loach in a large (cant mind how many gallons but 4' by 1.5' by 2') coldwater tank with only 4 other fish(2 shubu's and 2 butterfly koi small enough for tank going into pond in spring). the loach that has got a bit on the tubby side is my oldest one ToJo, a regular coloured 3.5yr old. ToJo has always been a healthya nd active fish and has lived with MoJo the golden weather loach for about 3 years about 6 months ago I bought a young loach (JoJo). about a month ago I noticed that JoJo was swimming round and round both of the other loachs kinda like dancing and now Mojo the oldest has a huge belly and doesnt bury as much as he/she used to does this sound like breeding weather loach or should I be looking for something a bit more sinister? All other fish in the tank are happy and healthy and the water tests show the water to be spot on.

Anyone seen this before?

xox

 

[Tokis-Phoenix]

Its posible the loach is carrying eggs, a lot of loaches do this, although i don't know what the chances are of the loach ever laying them. Pics would help though to help rule out any illnesses which could be causing the loaches bloated look .