Cold-water nano creatures?

[BlackOsprey]

I have a 3-gallon bowl that is very well-established and planted. No stock besides the usual "pest" snails. a heater would be difficult to fit in, and nano heaters tend to break really fast anyways, so I'm looking for interesting critters that can live in temps between about 65-72F.

I know cherry shrimp can handle that fine, but I'd like to know about any other kind of fish or invert besides them.

 

[Cue]

Plenty of snail species, amphipods, copepods, leeches… lots of little guys

Medicinal leeches are very interesting if you’re willing to feed them every few months (not necessarily on yourself.)

 

[BlackOsprey]

Plenty of snail species, amphipods, copepods, leeches… lots of little guys

Medicinal leeches are very interesting if you’re willing to feed them every few months (not necessarily on yourself.)

I should mention, this is for a bowl in an office-- so while I don't have any issue with critters like leeches, we may want to keep things a little more conventional.

Any specifics?

 

[ProudPapa]

I would recommend sticking with shrimp. I don't know of any fish that will thrive in a tank that small.

 

[Cue]

I should mention, this is for a bowl in an office-- so while I don't have any issue with critters like leeches, we may want to keep things a little more conventional.

Any specifics?

If I were you I would grab some lake sludge and just see what shows up!