Hi I'm looking to stock my 200 gallon 1.8m x 0.6m x 0.7m and I already have a green terror and a red terror in a 45 gallon but they are only about 1-2 inches long so I was thinking of putting them in the tank along with 1 oscar and 1 jack Dempsey, what do you think? They will all be small when I put them together