“How much to feed betta” or “how much to feed a betta fish” is a question that has puzzled me for a long time. I did not find any definitive answer online. I believe the rule “feed the size of the fish’s eyeball” leads to underfeeding, based on my experience. Also, it does not quite make sense to me that “a fish’s stomach is the size of its eyeball”, which is another commonly quoted guideline.
Hence, I create my own modified rule:
#1) Feed twice the size of the fish’s eyeball (eyeball includes the entire “sphere”, not just the exposed part).
#2) Adjust accordingly based on the size of the fish’s stomach. A healthy betta should have a round belly (especially after feeding) and a streamlined look at the same time. This is a bit subjective and requires experience of looking at hundreds of betta photos online to get a sense of what is a normal betta shape.
Following the above rule, I am currently feeding 3 to 4 pellets of Hikari Betta Bio-gold daily. That is a Hikari fish food specially formulated for bettas. Betta are carnivorous and require more protein.
How much do you feed your betta? Do you think I am underfeeding or overfeeding? Please comment below!