The Hikari Freeze-Dried Daphnia is a great product to use for your fish. I purchased this item because PetCo ran out in their store near me, so I had to search online. In this review, however, I will explain my experience using this product on my Betta (Aleister).Pros:- My Betta does not require much food; therefore, my product has lasted since January 24 (when it was delivered to me). It has been about two months, and the container still needs to be emptied. I feed him tiny bits since he tends to get bloated quickly, which could be a me-thing.- The quality of the food is excellent. My Betta always eats the portions I give him without hesitation.- The Daphnia floats on the surface, and I have not seen it sink to the bottom since I have been feeding Aleister.- The packaging is sturdy and keeps the Daphnia inside with no problem. The Daphnia appears to stay fresh, too, as I have not seen signs of it going wrong (or maybe Aleister is just gluttonous.)- The slider is excellent, too, as I do not need to unscrew the whole top to get some food out.Cons:- I wonder if it is because Bettas have small stomachs (approximately the size of their eye!) or if it is the ingredients inside the Daphina. Still, I can only feed Aleister specks of the Daphnia because it bulges his stomach quickly. This becomes a problem because the Daphina is generally soft so I have to try and find the hard specks to put it on my finger and drop it in the tank.- While the large packaging is excellent for holding a large amount of Daphnia, it can be an issue for those who need space. I live in a college dorm, so I cannot fit the container inside a drawer. I have to put it on one of the shelves, which, surprisingly, takes up more room than necessary.Recommendations:- Have various size options for the Daphnia. This product is $12.09 (excluding the current discount), which is extremely expensive for fish food (not including the shipping costs). Since many fish owners with different types of fish purchase this product, some individuals will use up the Daphnia quickly or, like me, very slowly. This would be great as I only have one fish to care for, so I do not need this giant bottle when I only use it when Aleister has constipation. There should be an option for a smaller bottle for medical uses, as I mentioned before, for being used as a laxative for fish and not solely for food.- As many other users mentioned before, the Daphnia can get messy when trying to feed fish. I have to use the slider halfway because the hole that the food comes from is too large and makes a mess in my tank.- For the lid, I recommend different options. For example, purchasing a container with multiple smaller holes instead of a hole should be another option, like a salt shaker-type variation.Conclusion:To conclude, Hikari's Freeze Dried Daphnia product is an excellent choice to use as a laxative for your fish (Betta), and I would buy from this manufacturer again. Hikari has a monopoly over Daphina fish food products, so you are forced to buy from this company. If they created other variations of the Daphnia with lower prices, that would be fantastic! However, if another business made Daphnia cheaper and is already established as well-known and reputable, then I would switch over. However, at the moment, Hikari is my go-to choice.