Hi Alevans,
My parameters are somewhat similar to yours, are you also using r/o?
ph6.7-6.9
Tds also varies, never lower than 280 and up to 350ppm (although the very first spawn was done with a tds of about 480ppm).
Ammonia and Nitrite - 0mg/l
Nitrate, 20mg/l as an average
Temp 29C, which I drop to about 26C to induce a spawn
I haven't had the chance to check whether the fry grow quicker when isolated but I'd certainly be interested to find out.
Lol, everyone I've spoken to seems to say getting hold of the fry isn't very difficult, ie just cup a hand over them etc etc. I find impossible to catch them with my hands and virtually impossible with a net and that's catching them in a much smaller tank than yours. I found the best way, for me, is to use a clear plastic fry trap laid on its side. By creating a triangle using the opening of the fry tap and one corner of the tank, I could coax the fry which were in the corner into the plastic fry trap and then take them into the other tank without problem.
thanks
Plastic Mac