Themometer Knife and Ossa Kinfe info?

[Renegade Aquatics]

I have failed at finding any info on these two species. Only thing I can find is size of the Gymnorhamphichthys hypostomus (Thermometer knife) which is supposedly 8ish inches (according to gunpowder aquatics and fishbase).
So please if you have ANY info please post it, I'd love to know
thanks in advance

 

[kno4te]

mattmez

 

[freak78]

I have a ossa knifefish otherwise known as a trumpet knifefish in my 125. It's about 17 inches now, it's a nocturnal fish so you won't see it till the lights are out. I feed it bloodworms and it will scavenge whatever it can find. Really cool to watch it glide in the water.