I never knew they gave live birth, that's so awesome. Congrats on the new addition B)
. Lucky 
Ive got them in my 10 gallon community tank at the moment but if they start to breed i'll move them to a 5 gallon breeding tank.
only joking, theyre in a 200 gallon tank with various large catfish and oddballs

thats amazing! are the rays good at defending themselves? I heard that they were very fragile.

I once had 100 tanks going in the Fish-House.25 years and no big fish, sounds like its time to splash out on a bigger tank and a pair of rays.
/www.thetropicaltank.co.uk/Fishindx/redtcat.htm