Sick tank, rainbows looking bizarre

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threnjen

Aquarium Advice Addict
Joined
Nov 19, 2013
Messages
1,611
Location
Portland, OR
So, to make a long story short as possible, been treating a tank for Columnaris and on day 6 of meds.

Hubby and I just noticed that some of our rainbows are developing an... unhealthy shape?? Very strange. Some of them are swimming diagonally with tails up and heads down, bellies are bloated, and heads are tilted upward.

My phone pics are very bad...

First pic is a rainbow that looks fine.
Second pic is one of the weird ones. Bloated belly, diagonal in water column, head tilted downward. You can also see the cottony puffs on his mouth. Day 6 and they are getting worse, not better :(

Could this be something else in addition to columnaris??
 

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This is stupid, could they just be full? They just had a big meal. It was freeze dried brine shrimp so if they ate a lot it could have expanded in their stomachs.
I can't even think if I saw this before they ate. Honestly I am just mentally exhausted right now from dealing with problems with the tank.
 
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