Dorn27----got question, you said that bloodworms cause constipation--how about frozen brine shrimp? I feed my bettas 90% of the time HIKARI betta pellets, and was thinking about getting some frozen brine shrimp as extra treat during the week, what do you think. So far I've had not trouble with constipation, but what do I know, I've only been at this thing for just a few months.