i have one platy left after the others have died and or disappeared(i blame a sneaky cat) in my 10gal. Hes been in there with my female betta but she recently died due to unknown causes. strangely enough they swam everywhere together and interacted constantly(non aggressively i might add). But im going off to college so i would not like to take the 10gal along with my other tanks. So my idea is to put him in my 5.5 gal with one of my males, who is quite aggressive. this is the only option b/c it has a filter which equals oxygenated water. i could switch out bettas and put one of my more docile boys in there but i just hate the idea of moving him from a 5.5 to a 2.5(which is what my other 2 boys are in). is there anyway i could acclimate my betta to my platy? like keeping him in a breeding net to get used to it or is it just a lost cause?