So, about a week ago I bought a yasha goby at my store and he has been doing good until today, he has been eating and even earlier today he did, but I noticed later in the day he was swimming around and not on the sandbed like he normally was, then the verticle swimming, then the plunging his head into a rock to "hide" possibly but looking like the flow was getting the best of him aswell as having a harder time staying upright. Just a few minutes ago my fire shrimp was grabbing him, I got him out and put him into my breeder box, he is on his side slowly but heavily breathing, fins are damaged as well and the slight possibility of a little faded coloration where the stripes are. Any thoughts? all my other fish are fine and I don't know what to do.