Fish dying from time to time?

W

Wonx2150

New member
My fish are dropping dead from time to time. We have a tropical tank with about 10 fish in at the moment and about once a month a fish dies. There is no pattern to it or anything they are often different species. And not obviously the weakest fish for example. As the latest victim was the only male of a species. There is not obviously anything wrong with the tank.

When living with my parents and we had gold fish and when they died it tended to be a mass extinction were all of them died within a week or so. Not just 1 a month.

Any ideas as to what maybe causing it? As far as we know they are getting enough food and the water is clean.
To the best of my knowledge the temperature is stable. The heater is on at all times. And yes the there is a pump and its also always running.
 
You could see if your pet centre will test a water sample for you to see if anything is wrong with the water quality. Presumably the temperature is right, there is enough aeration & filtration & you're not using untreated tap water when you do a partial water change? Have you checked them carefully for signs of disease? They don't always get wiped out all at once.
 
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