well I have very minimal amount of space so I cant get a second tank sadly but I think I have made my decision to go with a more predator like tank such as eels, lionfish, angel fish, and triggers and by the way this question probably sounds crazy and very stupid but do you think I would be able to put a green mandarin goby with if I was not to get triggers or lionfish or would the eel still eat it and since its a 75g tank would they stay separate like GMG(Green mandarin goby) at the right side of the tank and the SE(snowflake eel) at the left side and visa versa or will they eventually meet each other.