Not an axolotl. Seen those reach almost a foot in length. They don't move around that much, but the bioload would just be too much for normal maintenance. And cramped...
Aside from a rare livebearer or some mouthbrooding bettas, I'd suggest terrestrial invertebrates like red slugs (arion rufus) or....be a pioneer like me and help the Freshwater Reef hobby. Daphnia, scuds, worms, mud, hydra, graceful nematodes, planaria, native ramshorn snails, ostracods, predatory insects, OMG the critters are just as awesome as SW but for some reason our hobby on the whole ignores that whole part of the food chain while SW enthusiasts embrace it. Once you start observing the activities of a FW Reef it's hard to walk away. Sure, the colors aren't as vibrant, but the community dynamics are pretty analogous.
Aside from a rare livebearer or some mouthbrooding bettas, I'd suggest terrestrial invertebrates like red slugs (arion rufus) or....be a pioneer like me and help the Freshwater Reef hobby. Daphnia, scuds, worms, mud, hydra, graceful nematodes, planaria, native ramshorn snails, ostracods, predatory insects, OMG the critters are just as awesome as SW but for some reason our hobby on the whole ignores that whole part of the food chain while SW enthusiasts embrace it. Once you start observing the activities of a FW Reef it's hard to walk away. Sure, the colors aren't as vibrant, but the community dynamics are pretty analogous.
