Hello. I am longtime freshwater fish hobbyist. I am looking to challenge myself now though. I am planning a 96"x24"x24" tank in the near future and would like to raise a ray or two. particularly looking at a couple hystrix. would like to do motoros but im not looking to build a new tank later down the road. I was just curious about putting 2 same sex rays together. I've heard various stories that it can cause fights. I would like 2 same sex rays cause i dont wanna wake up one morning and have a handful of rays on my hands. please hook me up with any advice you can. thanks for your time