Danio8
Aquarium Advice Activist
I recently took in a male betta fish that was unwanted. It is still in the original 3 gallon tank with the gravel and everything. I added a heater (which keeps the tank at about 78 - 79 f) and a sponge filter to the tank. Everything seems to be going well. I just did a water change and realized that in such a small tank, doing a water change with room temperature water lowered the temperature down to around 72 f. I hope the betta will be okay from the shock! Anyways, Does anybody have any suggestions on what to do?