I have 2 retics. The male is about 8 inches and the female is about 7. I would like to breed them but I dont now if they can breed in my tank. Its a 150 I believe. It 5 feet by 18 inches wide. Is this ok? They seem to have alot of room to move around. And I have had them for about 6-7 months and they have been in that tank ever sense.