I have a ten gallon with one 2" Ryukin who I've had for a about three months now. The tank recently cycled and I finally told my little brother I would consider getting my goldfish a roomate/s. Do you think my tank is too small to add another fish? I know I can't add another goldfish, but a few white clouds or zebra danios might be okay right? Also maybe a small algae eater of some sort. I know my goldy could eat most tank mates, but right now he's small. I don't think his mouth will be able to fit in any type of fish soon anyway.
Any advice is welcomed.
Thanks