Just use regular melafix or primafix.. Just a gimmic..

Labyrinth fish, like bettas and gouramis, can be seriously injured or even killed by the use of BettaFix or MelaFix, the stronger formula. While other fish can tolerate melaleuca extract (the active ingredient in Betta/MelaFix) quite well, the labyrinth organ present in bettas is highly sensitive to it. The melaleuca can burn the labyrinth organ and at high enough concentrations or with enough exposure, can damage the labyrinth organ to the point that the fish cannot breathe with it. These fish cannot breathe using their gills alone and will suffocate as a result of this.

Many people have reported firsthand the sudden deaths of their bettas after using this product.

Given the above information, I cannot give this product, when marketed specifically FOR bettas a good rating or recommend it at all.

Also, note that melaleuca is a harsh antiseptic and an irritant, speeding the healing of torn fins and tissue by irritating the injury site to speed up healing. This would be similar to putting alcohol on a wound.

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*We weep for a bird's cry, but not for a fish's blood. Blessed are those with a voice.* - Mamoru Oshii