"freshwater snowflake eel" gymnothorax tile

[Gavner]

i know it's a brackish water eel, my tank is brackish.

i have him in there with 2 green scats.

i was wondering a few things:

can eels see red light?

is there an easy way to ween them onto dead food? like raw shrimp or fish filets?
will weening them deter them from hunting live prey?
could i buy raw shrimp form a place like shoprite or acme? or should i get something frozen form petsmart?
is there any reason a hungry g. tile wouldn't eat ghost shrimp in the tank? if they've been in the tank for a while, would he not want to eat them for any reason?

and lastly, what would some other good tank mates be?


sorry for all the questions, and i apologize if any are obvious answers, but i don't want to do anything wrong.

thanks in advance,
Gavner