fish that died

[bala_shark]

as i said one still lives, just one died, and the fish did live for about maybe a week can't remember now. i don't have a heater, and the fish are fine. the temp of the water is 70 degrees Fahrenheit or 21 degrees C unless the water needs to be warmer i will get a heater, but the fish are not sick or dying now, and i have not used a heater since i got it, last year on my bday.
Cheers
Bala Shark

 

[amesbien]

It would be in your best interest to buya water testing kit. Knowing ammonia, nitrite, and nitrate levels is what we need to know now. And what fish do you have?

 

[kakojones]

Cycle the tank first next time you set up a new tank. I know people have already said that, but they aren't lying. just google aquarium cycle. also too many new fish at once can cause an ammonia spike, i don't think two fish would do this unless it was a 1.5 or 5 gallon though

cycle first, it takes more than a day. a week maybe two to do it at least.