Cool stuff, hydro! I got the rubbermaid version of that trough you linked. It's not as pretty as yours (and a bit smaller), but they had them locally for about $85, so I got it. Plus it's half buried in the ground, and the upper half has rocks around it (should look good when I get these little succulent vines growing all over it to fill in the gaps in the rocks, these things grow like weeds around here, no idea what they are called) I think that the zebra danios will love the 32.5x turnover in the pond
It got cold quick here too. Should warm up in a couple of days, though. Hopefully the ~25 danios I have in the tank to get things going biologically will make it through 50 degree water for a couple of days.