Hi. I am fairly new to fish keeping, about six months. I now have a 4ft tank holding around 170 ltrs. I have had no problems since setting it up until a week ago when I started losing fish. On average, one a day. I have tested the water which showed normal. I also had the water proffesionaly checked just to make sure. They confirmed that the water is ok. I would be grateful for any suggestions before I lose too many more.
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- Thread starter chandos
- Start date
markandhisfish
comfortably numb
hi and welcome
could you give us test resuts for ammonia nitrite and nitrate? also what is your stocking . and was the tank cycled before adding fish?
could you give us test resuts for ammonia nitrite and nitrate? also what is your stocking . and was the tank cycled before adding fish?
FishAreFriendsNotFood10
Fish Herder
welcome to the forum 
Welcome to the forum. 
Do the fish look different upon death, do they have white spots on them or anything?
Do the fish look different upon death, do they have white spots on them or anything?
Welcome to the forum Chandos.
I am going to make the typical first assumption that something may be amiss with your water. I do not know how you test your water or what particular parameters you test. One thing that I have found over the years is that when fish start dying for no apparent reason, it is almost always a water quality issue no matter what the tests say about it. A first aid approach is to do an immediate 50% or larger water change, even if everything tests fine. If you stop having losses, you will know that something you were unable to test was the problem and it has been helped by the water change. I often find that my remaining fish look far better than the ones that I lost and I follow up with another huge water change. What I figure is that I lost some fish to an unknown pollutant and that further reducing that pollutant with a massive water change can't help improving things.
My own experience tells me this will be all that is needed about 90% of the time.
I am going to make the typical first assumption that something may be amiss with your water. I do not know how you test your water or what particular parameters you test. One thing that I have found over the years is that when fish start dying for no apparent reason, it is almost always a water quality issue no matter what the tests say about it. A first aid approach is to do an immediate 50% or larger water change, even if everything tests fine. If you stop having losses, you will know that something you were unable to test was the problem and it has been helped by the water change. I often find that my remaining fish look far better than the ones that I lost and I follow up with another huge water change. What I figure is that I lost some fish to an unknown pollutant and that further reducing that pollutant with a massive water change can't help improving things.
My own experience tells me this will be all that is needed about 90% of the time.
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