Goldfish after a fight!!!

[blackmoor311]

Hi. This past weekend I went to my uncles house, he has quite a large pond filled with koi and a couple of goldfish. One of the goldfish that was there was severely hurt. I wanted to help it and my uncle said I could take him. With that I also got 3 koi fry I am raising for him. The tank is 10 gallons in size. I know this is way to small for a goldfish but this is only temporary. It also has a working filter and heater, plenty of hiding spaces as well. His tank mates are 2 juvenile platys, 1 ghost shrimp, 1 male dwarf gourami and an upside down catfish. The tank parameters are: nitrate- 5ppm, nitrite- .5ppm, general hardness- 150ppm, chlorine- 0ppm, alkalinity- 180ppm and pH- 7.3. He has eaten goldfish flakes slightly. I also put in stress coat and zyme to help it out as well as 2 teaspoons of aquarium salt. Is there anything else I can do to help it, I feel bad about it even though it wasn't my fault...sorry for the long drawn out question..lol

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[Crazyhermitcrab]

Your tank is overstocked and not cycled.

 

[jlk]

Are the koi in the 10g tank as well as the goldfish and other fish? What is your ammonia reading?

My suggestion is to pick up a 20g Rubbermaid-type plastic bin and filter as soon as possible and move the goldfish to this. The bins run about $5 at walmart/any big chain store. Any koi you may have should be placed in the pond immediately. Then do daily to multiple 50%+ wcs on both tanks with a good water conditioner such as Prime as neither tank is cycled. Please ask any questions!