Okay so Spike is confusing the heck out of me. First I thought he was a loach, then an oto, now I'm completely confused. A number of things puzzled me about Spike the oto (or so I thought he was) - first, he's thriving with my goldfish, coldwater. Second, not knowing any better, I put him into a brand spanking new uncycled tank set-up. He lived, and thrived. Two days ago, I saw him chasing my two goldfish all over the tank.. got to a point I almost took him out of the tank altogether. That puzzled me because I thought otos were peaceloving little things. Now I've stumbled upon voiceless kat's thread on whether hers is an oto or a CAE, and now I'm wondering if it's a CAE

In which case I'm really starting to worry!!
What is it

Sorry the pictures aren't great... my camera isn't the best at zooming.