theresearcher
New member
Here is what I have found. If you get them small they don't have much interest in inverts. Also, if the inverts were established and he was added last, then he probably wouldn't eat them. Hope this helps. 
About the mushrooms, I was looking at some and they have really cool striped ones. Now I know what you mean by rarer.
Since you want personality a mandarin is about as good as it gets. My spotted male dragonet follows me around the tank and when I sit in front of the tank he watches me. He eats mysis so food is not an issue. I'm glad your looking for one that has been trained because most people do this after they realize their tank can't support one and several have died. Even if you get him trained make sure you can form a feeding spot in a low to no flow zone in your tank. This way the fish can eat at its own pace and food doesn't get blown away. My male remembers where to go at feeding time and pops up on top of the "feeding rock" waiting to be fed from a turkey baster. Feed the other fish first so they are less likely to steal his food.