How To Care For An Old Betta Fish. Betta fish may be fed with brine shrimp or frozen bloodworms. There are different breeds of betta fish which most of the people are unaware of.
About 25 percent of the water in the tank should be renewed weekly NEVER do a 100 percent water change. One critical aspect of how to care for a betta fish is providing it with clean water at the appropriate temperature and pH to keep the betta fish healthy. The ideal water temperature for betta fish is between seventy-eight and eighty degrees Fahrenheit.
Perform regular water changes.
Is your betta fish starting to slow down in his old age. You should feed your betta fish no more than twice a day. Older bettas lose their vitality and ability to fight off disease. Having a reliable filtration system is crucial as well.