Stocking suggestions for small hang-on tank
I have just purchased a small hang-on tank (about 2 liters).
I'm looking for stocking suggestions. I've been thinking of a shrimp and goby pair. If I do that, would it be possible to combine with a couple of other small crabs, or a hermit, or a small shrimp?
The water flow is not very fast, but is sufficient to keep to temperature stable (although I suspect it will vary a bit more than the main tank, and at least be a bit colder in winter.)