cool yeah those are about the same size as mine right now (about 1.5in) just keep the water clean and temp up and they should be fine, also watch out for aggression i had to divide my two because one was relentlessly attacking my other one and they can die very easily from stress at this size, also its impossible to tell sex at this size, color differences now lean more towards which is dominant or not rather than actual sex of fish. GOOD LUCK