This is my friend’s female plakat betta. I mentioned to her that, to me, she looks seriously overweight or possibly swollen from fluid retention/oedema, rather than simply being full of eggs.
What makes it confusing is that she doesn’t seem to be overfed. My friend keeps around ten bettas, and this female eats roughly the same amount as the others, sometimes even less. They also have one fasting day per week.
A couple of friends have told her that there’s nothing wrong with the fish and that she’s just gravid/full of eggs, which is why her abdomen looks so large. I’m not really convinced by that explanation, especially looking at her body shape from above and from the front.
My friend asked me to post these photos here and get some more opinions.
What do you think? Does this look like a normally egg-filled female, obesity, constipation, fluid retention, or something else?
She’s otherwise behaving normally as far as we can tell.
I’d especially appreciate opinions from people who keep or breed female bettas and are familiar with what a heavily gravid female should look like.