Fish dying

finmann

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hi,

I have a 30 gallon, liquid carbon, flourish, medium lighting tank..

it cycled properly, and I added 12 cardinals and two gouramis after a month.. they were fine..

later I added 4 mollies, 6 guppies, 6 dinos .. and right after my fishes started dying..

now dead - 4 mollies, 2 guppies, 3 cardinals, 2 dinos ..

I am doing my water changes weekly 30% and giving sparse diet to fish ..

what is wrong?
 

bettamars

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Did you add all of those fish in the second part at once? If you did, that could've caused a minI cycle. Also, I'm not sure, but it seems overstocked to me, especially since mollies are very poopy creatures. What are you parameters?

Could've also been bad stock though.
 

Dom90

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I'm thinking the same thing, tank is overstocked with the mollies in it.


 
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finmann

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I have a canister filter - three pads - ceramic rings - 6x filtration per hour
parameters - I don't have a test kit - before adding the second set of fishes "4 , 6 guppies, 6 dinos" my cycle was complete, I got the water checked at a LFS.
 

Dom90

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You really should have your own test kit and not believe the test results of lfs. Adding too many fish at a time can cause ammonia spike.


 
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finmann

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so what should I do now? water change? filter clean with aquarium water? anything else?
 

Aquarist

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Good morning,

Until you can post readings for Ammonia, Nitrite, Nitrate and pH, it is really difficult to say what is going on with your aquarium. I hate that you are losing fish. I know it isn't easy to stand by and watch them pass especially when we do not know why.

Anytime something seems "off", a good place to start is with a water change and adding Prime water conditioner.

If it is within your means to purchase a test kit, I highly suggest the API (liquid) Master Test Kit. This kit will test for everything that you really need.



Each test can also be purchased separately. If you go this route, I would suggest starting with the Ammonia Test Kit.

Prime Water Conditioner:


Best wishes for your tank and fish and I hope you enjoy the forum. Please keep us posted.

Ken
 

BornThisWayBettas

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Welcome to Fish Lore!!!!

I agree with what the others have said so far, water parameters would be very helpful. Also, I do think it's quite possible that you got an ammonia spike from adding in all those fish at once, especially because mollies and guppies are high waste producers.

Good luck!
 

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