i agree with richard, and also have my suspicions as to the true nature of the origin of this damage. i've never had this kind of damage come up from a young fish running into the side of the glass. tankmates sound much more likely to cause that sort of severe damage.
also take into account that, although small, t-gars (and their genus in general) are very stout and have well-built skulls...i seriously doubt they can generate enough force in an aquarium to break their own snouts like this.
as mentioned earlier, pics will help, but my guess is something grabbed a hold of the snout and then proceeded to break it. even if the gar can feed, if the snout damage is constantly causing new loss of blood, the best advice (again, we'll wait until seeing pics) would be to put down the fish. sorry to hear about your gar
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--solomon
also take into account that, although small, t-gars (and their genus in general) are very stout and have well-built skulls...i seriously doubt they can generate enough force in an aquarium to break their own snouts like this.
as mentioned earlier, pics will help, but my guess is something grabbed a hold of the snout and then proceeded to break it. even if the gar can feed, if the snout damage is constantly causing new loss of blood, the best advice (again, we'll wait until seeing pics) would be to put down the fish. sorry to hear about your gar
--solomon