congratulations on your great build!!! just brilliant....... and I'm really glad to see such enthusiasm especially in a non-tropical climate country...
went through your thread too... not too bad, I would say
I love your arowanas, especially the red's
they hardly accept something else than living food (guppies, flies) and deep frozen mosquito larvae... some of them grow quite fast (the ones who occasionnaly take bites of pangasius and shrimps) and some do not starve, but don't grow too fast 