I breed my rays in 700 gallon tubs or stock tanks, and yes it is a CHINESE ALBINO SOFTSHELL. I am also posting some updated pictures of filtration system, there pressurized pond filters with plastic bio beads in them only have to be backwashed. Doesnt get all small particles i gave up on that alittle while ago. Filters are great for heavy bio-loads.
all i can say is it's awsome i love it. The leo's are so my favorite ray's som buitifull love the filter system as well i just got convices by some one on here to use a poly beed filter system on my 240 8'2'2 i'm setting up right now and a micron pleated filter with uv you'rs is one of the only big tanks i have seen us it thow don't know why more don't know that i am getting one and have done a bunch of reasearch on them. ANy ways love the tank i hope breeding goes well with the rays and i wish you the best of luck. But seems like you know what you are doing all ready. Also were did you get you'r dorado from i want a gold one whiched bad any ways great tank keep up the good work.