Shadowraven
Aquarium Advice FINatic
Freeze dried foods can cause bloat and constipation. I avoid them at all costs. I would say it's especially crucial with bettas, dwarf gourami, and ADF's..but I'm sure there's more. I would just avoid them all together if you can
Bloat is more likely if you feed it to them routinely or too often. But when used as an occasional treat and not overfeeding them with it, it is not a problem and they like it. It also depends on the quality of the food you feed them. With higher quality freeze-dried foods you are less likely to encounter the bloat problem to begin with.
I've used it as an occasional treat and have never had any problems with it. But I am also careful how and what I feed my fish. I also buy it in smaller quantities so that it won't go bad before I use it all.