cowpony

Two different kinds of shrimp get sold as ghost shrimp. The ones people normally think of as ghost shrimp are Palaemonetes. These guys are mostly shy and peaceful, though they can get grumpy with each other when crowded or in mating mode. They're scavengers, so I wouldn't put it past them to eat fish fry or anything small enough to fit in their mouths. Normally they aren't particularly aggressive hunters, though. Then there are Macrobrachium shrimp. There are a lot of different Macrobrachium species, and some look like Palaemonetes when young. If you are unlucky enough to get the wrong kind, it will grow up to be large, ill-tempered, and capable of hunting smaller fish or other shrimp.

Dojo loaches can get to be 10 inches. They are sociable and will snuggle with each other. I've been wanting some for a while now. Unfortunately, I'm not in a situation right now where I could have a big enough tank for a group, and I don't want to keep them in isolation.