Ok, I'll preface this with a very, very long story because it's just so odd, but if you'd like to just help me out with IDing this fish, skip to the bottom.
So I drive buses for my university. I was just about done with my shift and my coworker got on the bus at one of the stops to take over for me and with him, he had a fish. It was in some gross, cloudy, greenish yellowish water in a very small container (slightly smaller than the fish was long, in fact) and I thought it was probably dead. I thought it was pretty odd that he was carrying a dead fish to work and, of course, questioned him about it.
He said he had found the fish in the container just sitting at the bus stop. He thought he'd pick it up since it was well below freezing out and it would probably be a block of ice with in a few hours.
??? Who leaves a fish at a bus stop??? Why??
SO WEIRD. So then he said "You have an aquarium, don't you?" and I immediately did not like where the whole thing was going. Anyway, after he took over the shift, I went to leave the bus and he was like "Hey, um, are you gonna take this thing? Because otherwise I think I'll just toss him."
So I groaned and sighed and gave in and suddenly took responsibility for a very sad, sick, and strange looking fish. I really did not want to deal with the damn thing, but once I took it, I knew I was obligated to do SOMETHING. I couldn't just throw the poor thing away. So, I went to my car, drove to the grocery store, did a little shopping, then drove home, and found that the fish was STILL alive. I took some water from my aquarium and dumped it into a SLIGHTLY larger container and dumped the fish in.
I forgot to mention that he had been in this teeny tiny container with a dead guppy. I don't know how, but I think that definitely adds to the story in a way. Anyway, the container and the dead guppy went in the trash and I had a strange mystery fish in a mixing bowl on my kitchen table.
I had NO CLUE as to the fish's species. I really thought it was something that somebody had found in a local stream or river. It looked dull and grey and kind of like one of the invasive carp species you can see from time to time, or just... something from a little stream.
Anyway, I didn't know how to make any progress on identifying the species, nor did I know how that would help me. I figured I would just stick the fish in a bucket and have it sitting around until it finally died and I was not happy about the entire situation. If it lived, that might even be worse because then I would have to actually figure out something to do with it.
I was getting even more stressed out by the fact that it seemed like it WASNT right at death's door. It was actually trying to escape it's bowl and swimming rapidly and seeming alive.
Meanwhile, it's getting later and later. I can't find the bucket I thought i could put him in, and since I moved into an apartment, I had to get rid of the little hospital tank I used to keep. I'm getting more and more tired and more and more annoyed with this ridiculous situation.
Finally, filled sleepy insanity and full of frustration, I decided to break what might be the number one aquarium keeping rule - Do not put questionable fish in your precious aquarium, especially if they look weird and sick and you don't even have any idea what kind of fish they might be and your friend/coworker/neighbor found it at the bus stop outside your student housing apartment. Seriously, you just don't do that.
But I did it. I dumped in this strange, sickly looking fish into my 55 gallon goldfish tank.
And he seemed SOOOOO happy. I'm still 99 percent sure I'm going to massively regret this bad decision, but so far, so good.
Anyway, once I got him into the tank where he could actually swim and under some aquarium lights, it suddenly struck me that he looked a LOT like a koi fish (and I was blown away by the fact that I hadn't seen it immediately. Also, this realization made me feel slightly better about dumping him in with my goldfish.)
So, still confused and unsure, I went to bed.
In the morning, he was doing fine. He ate food, didn't have his fins clamped anymore, and was swimming about like normal (though a bit more shy than my goldfish. He liked to hide in the back when I came near the glass or tried to get a photo.)
So I tried to look up photos of smaller koi and see if anything matched him. The only thing that weirded me out about him is that he has these massive plate-like scaled and where he doesn't have those, he doesn't have any scales at all. I've never noticed anything like that on any type of fish ever before and I couldn't find any photos of koi that looked like that. I finally did some searched for "Koi large scales" and found very few photos of a variety that does look like him, but all the sources seemed to suggest they were more rare (so even more unlikely to be left at a bus stop with a dead guppy?)
Anyway, so my question is this: "Is this a koi?"
Here are photos: https://plus.google.com/photos/10195...CJXd5Paw9NKwFg
I was just lazy and used my cell phone, but I could get some decent photos with my camera. But anyway, if it is a koi, are his scales and also lack of scales normal? If it is a not a koi, what is it? Do people frequently leave these fish at bus stops on very cold winter days? Is this as bizarre as I think it is? What should I do with this thing?
Excuse my ignorance. I've never had koi. Or really much of anything besides my silly little fancy goldfish.