So I’ve attached photos to give a better idea of the situation. So my mother bought a betta on a whim without consulting me for advice. She knows I keep fish and have knowledge of them but for some reason didn’t ask me for any help. Needless to say I came over to find him in a 1.5 gallon, uneaten food all over the gravel, at the top of the tank (typical over feeding), algae everywhere and what looks to be a poor, sickly betta, who almost definitely has ich and or fin rot. I also asked if she’d changed the water since she got him about a month ago, to which she said no. I threw a nicrew light I had lying around on it to get some better pictures of the tank as she didn’t have a light. Now the main issue is that I don’t have any established media to transfer into the tank or even to start up a new tank, at least in a quick manner.