I am sure this has been covered before but i don't have time to go through and search for it, so my question is i have 2 female 11" motoro rays and a 12" silver arro. Am i too late to try and mix a second arro in with my other one? I currently have them in a 125 gallon tank but i think i will have my 396 gallon tank in the house from the garage in the next couple of weeks. Should i wait until i get it up and running to try?