Updated On September 23rd, 2025
Pet's info: Fish | Unknown - Fish | Male | unneutered
My beta fish is lying on its side at the bottom of the tank, he hasn’t moved much or at all for a couple of days. He has short jolts of energy but ends up sinking. Water has been changed, and filtration is on. What might be the problem?
1 Answer
Published on May 1st, 2018
Check the water temperature. Bettas do best between 78 F and 80 F. You should also lower the water level to make it easier for him to reach the surface. Test the water or submit a water sample for testing to rule out elevated ammonia, nitrite or nitrate levels. Most pet stores will do this for free or for a small fee. Perform partial water changes, no more than 30% daily, to stabilize chemistry if indicated. use only aged or conditioned water that is temperature matched to prevent further stress or shock. Soaking pellets in garlic juice may stimulate his appetite and provide an immune system boost.
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