I figured this would be the best place to post this thread, because it includes gobies which are usually associated with blennies. So anyway, I found this video of what is claimed to be Hypsoblennius hertz (Feather Blenny) in a brackish water aquarium.
Where I live, I catch these quite often in brackish water, so that much is no surprise. However, the description claims these can live in freshwater. Has anyone ever tried this, and does it work? I seem to find claims of this semi-regularly, and I have not yet found concrete proof one way or another. I've also found the following sources:
https://upload.wikimedia.org/wikipe...hanock_River_in_Virginia_2014-04-16_19-09.jpg
(Judging by decor, water clarity, and gravel I assume this is freshwater)
and
floridapets.com
Does anyone here happen to know anything about this? Please lmk.
https://upload.wikimedia.org/wikipe...hanock_River_in_Virginia_2014-04-16_19-09.jpg
(Judging by decor, water clarity, and gravel I assume this is freshwater)
and

Florida Blenny
The Florida blenny is a small fish growing to a maximum length of 4 in. but a more typical length is 2.4 in. The single, continuous dorsal fin has about six spines and nineteen soft rays. The anal fin has eighteen or nineteen rays. The color of this fish is a mottled or speckled brown. The sexes...
Does anyone here happen to know anything about this? Please lmk.