Hey guys ive heard that this fish can be aggresive so how would the fair with 6 tiger barbs, 3 clown loaches, 2 platies, 3 dwarf gouramis, 4 rasboras, 2 diamond tetras, and 5 blue/gold rams in a 72 gallon tank? Would they harm any of these fish. Also would one be ok, or do you have to buy thess fish in pairs?