So I moved them into my 135 gallon as they were just too aggressive with each other in the 75 gallon 4 total I vented them all when I moved them.No better time right they are coming out of the water anyways I believe the big one is a female and then I have another female and two males one male I’m 100 percent sure is a male the other one is kind of iffy I didn’t see a Oo but it was hard to tell looked like oo