In a few days my new 5*2*2 aquarium will be finished and later needs to be setup.I thought of having an asian arowana untill fish reaches 1 and a half feet in length, 1 oscar, 6 clown loaches med sized, 1 black ghost knife fish which i already have(6-7 inches), along with 3-4 sea angels(mono)(these are true fresh and saltwater fishes).I know about compatibility issues with these fishes isnt the best but still not impossible,if problem arises i will rehome the fish into my other tanks. What i am rather concerned with is overstocking. can u guys suggest me about this issue and if u have other stocking ideas for fishes.(1 oscar,1 blackghost knife and 1 aro(grow out tank) will be in the tank for sure, for other fishes i am still deciding)