All my rasboras bloated red belly overnight?

BibiLee

Hi everyone,
I’m running a 70l (about 20 gallon) aquarium since two months. All levels are good (NO3 0, NO2 0, GH 7, KH 10, pH 7.4, CL2 0, CO2 15 after a water change two days ago). Stocking is 3 hillstream loaches, 10 neons, 11 harlequin rasboras, 4 ghost shrimp, 2 snails. When I last checked them last night, they were looking normal but this morning I found them all with this strange underbelly bloating. It’s bright red in some cases. I found similar threads that say it might be overeating and I was a bit heavy haded this morning but usually they don’t go deep and most of the excess foods is still on ground now, being cycled by my shrimp…

Help please, I’m really worried I’m going to lose all 11 of them!
Any advice is welcome, thanks a mil.
Bibi
 

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Pfrozen

It looks normal, the fish pictured are all females... it shouldn't be bright red though. that definitely is unusual. would need a better pic cus i don't see any redness
 
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BibiLee

OK so I did an additional water values check just now and values have slightly changed :
NO3 10, NO2 0.25, GH 7, KH 8, pH 7.6, CL2 0, CO2 15
I’ve added some bacteria to deal with the NO2 - I’ve heard of swings in KH and pH affecting fish - could this be related?
Any advice!
Thanks a lot
Bibi
I’ve tried to get some closeups - it’s the rear end that’s red
Are you thinking puberty?
Thanks a lot Pfrozen
 

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Pfrozen

Okay, I see the red areas now. That is definitely not normal. Looks like parasites and perhaps some kind of secondary infection but its hard to tell. I would start with a deworming routine as soon as possible. Fenbendazole is a good one and readily available. Flubendazole works as well

I was looking at the front part originally.. they just looked a bit gravid.. that back part with the big swollen red lump is a problem
 
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BibiLee

Thank you! Looking up the treatment now!
 
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Cherryshrimp420

Seems like overfeeding leading to digestive issues/parasites. I would stop feeding for a few days and do a water change
 
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BibiLee

Seems like overfeeding leading to digestive issues/parasites. I would stop feeding for a few days and do a water change
Thank you Cherryshrimp, I’ll do that and see if I can find a light version of Fenbendazole at my local pet store :) appreciate the advice
 
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BibiLee

Quick update on status: I bought an alternative to heavy antibiotics last night also because I was afraid what they might do to my other fish and I don’t have a quarantine tank I can use for them. This treatment should go on for 5 days. I did the water change this morning, didn’t feed them, and all water values are back to normal 2h after *ouf! - absolutely wonderful news, this PM I note that the swelling has gone down on the worst ones, and some have a normal belly again (the ones that were the best off already) and the worst ones are still swollen but not red anymore! I’m thrilled and will keep up the treatment for the 5 consecutive days and the bottle says I can add it every week at a lower dose for prevention purposes so I’ll be doing that too!
Thanks a mill for all the prompt advice! :)
Bibi
 

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TheAnglerAquarist

Great news!
Quick update on status: I bought an alternative to heavy antibiotics last night also because I was afraid what they might do to my other fish and I don’t have a quarantine tank I can use for them. This treatment should go on for 5 days. I did the water change this morning, didn’t feed them, and all water values are back to normal 2h after *ouf! - absolutely wonderful news, this PM I note that the swelling has gone down on the worst ones, and some have a normal belly again (the ones that were the best off already) and the worst ones are still swollen but not red anymore! I’m thrilled and will keep up the treatment for the 5 consecutive days and the bottle says I can add it every week at a lower dose for prevention purposes so I’ll be doing that too!
Thanks a mill for all the prompt advice! :)
Bibi
 
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