is this tank too small!

[Rayneuki]

I like the lightbulb xD
Are you planning on getting some of the smallest fish in the world? I'd imagine that would be near impossible.

 

[MissFishy]

It seems like it would be a borderline cruel experiment to put a fish in something like that. Even a betta would not be happy in there. There are tanks call "BioOrb" or something like that that are pretty cool looking. You could keep a betta in one of those easily and have the same aesthetic effect.

 

[sombunya]

I've seen tiny tanks, maybe 1/2 gallon, with full filtration.

Add a small light, nice.