My second year as a ponder and was happy to see baby goldfish in amongst the water lettuce.
So far the few that I have been able to see are about an inch long but have little colour (grey/ brown). Do the colours develop as they mature? I've got 7 adult (about 4 - 5 inches) GF, a mix of orange & calico fantails and a pair of shubunkins. The youngsters appear have the single shubunkin type tail so I'm not sure who did what (OK, I know what) with who so the youngsters could be real "mutts".
I noticed another spawn a couple of weeks ago, tiny 1/4" long fry amongst the plants but have not seen any intermediate size fish from that batch since so they either all expired naturally or became snacks for the adults. :'( Perhaps some may have survived in the water lettuce but have proved too hard to spot. Fall clean out should provide some interesting surprises!