While at a fish store the other day, I picked up a packet of 'Ocean Nutrition Black Mosquito Larvae'. I've not seen this particular variety of frozen food stocked in any of the aquariums I frequent, so I was quite excited to try it out. Hopefully, this will provide a suitable alternative to the 'real thing', during the colder months when live mosquito larvae is harder to come by.
My wild bettas can be very 'hit and miss' when it comes to frozen foods. So far however, I've fed this food twice, and both times it has met with a very enthusiastic response from my fish. Each cube contains mosquito larvae of varying sizes, which makes it a suitable food not just for adults, but also for juveniles and sub-adults. As many of my tanks contain fish of different ages, it means I don't have to feed multiple foods.
Personally, I think Ocean Nutrition provides some of the highest quality frozen foods in Australia. I've always been impressed with the quality of their foods, and this product is no different. I like the fact that when I thaw a cube out, I get whole mosquito larvae, rather than broken pieces of larvae that my fish don't want to eat.
If you keep or breed smaller species of wild betta, I strongly recommend giving this product a go. I don't know how cost effective it would be, if fed to larger mouthbrooders, but it is a perfect supplementary food for the coccina complex species.
Hailing from Melbourne, Australia, I currently keep and breed a number of species from the coccina complex.