Quote Originally Posted by kriwu View Post
Does your betta have a heater? 2.5 is a tad small for a betta, did you add him immediately without cycling the tank? If you have a fish in the tank and it's not cycled, you need to be changing and checking the water DAILY. Most people, while doing in-fish cycling will change about 25% per day until you get nitrite and finally nitrate readings. If you're using strips to test your water, I'd definitely suggest investing in a liquid test kit. They're about 30$ and are FAR more accurate.



Whoever told you that definitely doesn't know how to cycle a tank, you have to remove dirty water and replace it with clean, treated water. Your fish makes his dirt in there, you have to remove it, or the ammonia will build up and become fatal.
No I haven't added a heater because the water is 78 degrees regularly, however I get paid Friday and was going to get one. I added him after 24 hours of running the tank. So, no cycling I guess :/

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