Fish congregating by waterfall gasping


kelanadesa

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My fishes suddenly starts to congregate under waterfall. They also seemed to be gasping. Maybe the pond is getting overcrowded as they grow in size. I breed many types of species and roughly have about 500 fishes of 5 species in my pond. Is this a sign of overcrowding stress?
 

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addy1

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Welcome to the forum .

How big is your pond, that seems like a ton of fish!
 
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It can be a symptom of lack of oxygen in the water. You need to add airstones and thin out your fish if possible.
 
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It can also be an indication of high nitrites in the pond. Nitrite will prevent the blood from taking up oxygen and cause the fish to sufficate. It's called brown blood disease since the blood lacks the oxygen to turn it red.
 

Mmathis

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Hello and welcome!

What size is your pond? Are all of these fish in the same pond? How long have you been breeding them? Do you breed them for sale or just because you enjoy fish? They look over crowded.
 
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Well, trolls are real people too @addy1 ;)

Anyone who's breeding five species of fish should know whether or not their pond is overstocked and what signs of stress indicate. I don't know if I'm hoping this IS a real question or NOT. Come back and tell us more @kelanadesa
 
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I don't know why anyone would enjoy making up a question to post on a pond forum, but we've seen it before. Maybe they enjoy seeing our heads all explode... :eek:
 

Mmathis

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I wonder, too, when the question / problem is vague....and when the accompanying pictures don’t really feed into what the problem might be, or are out of context. Or, in this case, the pic shown actually points to a potential problem....and to experienced ponders, the context here, paints a good picture. ....and when we don’t hear back from the OP.

@kelanadesa As you can probably tell by the comments here, we don’t think that we have enough information about your pond and your overall situation to be able to give you a satisfactory answer. There are so many factors that can explain what is happening with your fish. They simply could be enjoying the waterfall. Your water quality could be poor and/or the oxygen level could be low. There could be a chemical contaminate in the water.

When we look at the picture you posted, and hear what you say about the number and variety of fish that you have, we see red flags — that something might be wrong with your fish-keeping practices. The only way we can help you is by having information about the pond, etc. There is no one answer to your question. We might come across as mean or uncaring by our comments, but please understand that our only goal is to help you and help your fish!
 
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