I have a 220 filled with CA/SA cichlids and as they get bigger I am starting to wonder If I should make swimming space for their bigger bodies, or put in more plants and driftwood to make more hides and places to define territories. At first I had a lot of open space, but I am starting to notice that most of the fish prefer to pick one place of the tank and just hang out in it instead of free roam the whole space. Ive also noticed that people like terd ferguson have many many plants and hides even though he has extremely large fish. Anyone have any input? I think Ill add more hides and territories as the fish grow to give them each their own space, since so far they seem to like it that way. What say you MFK? Do larger fish not swim as much? Are hides more important than open spans?