Got the lights and the pump for the 180 gallon AGA today, still running FW while I get everything set up.
I never did get anymore livestock for the 50 gallon, (still in learning mode). All that's in there are some of the original cleaning crew but I killed all the fish (blue green reef chromis) when I did something REALLY stupid a few weeks ago.

(In 20+ years in the aquarium hobby I've never wipped out an entire school of fish untill now).
The 29 gallon FW planted tank just has 3 Amano shrimp, no fish.
For the 10 gallon FW tank we just use a net to dip out a bunch of the mosquito fish when they start hanging out at the top after feeding time is over.

They get relocated to the big tanks outside.
There's usually about 7 pond comets in the 300 gallon water garden at any given time, the largest being about a foot long (give or take). They spawn regularly but we've seen birds catch them and I would guess that stray cats get some now and then as well.
Last but not least, we have 3 red eared sliders (aquatic turtles) living outside in another 300 gallon stock tank. That one has a pressure filter on it but needs a good sized settling tank and bio filter. In the meantime my wife lovingly moves them out to a feeding tank several times a week so the little piggies don't pollute their water.
All in all I think we keep stocking levels to a minimum, we haven't suffered from morefi****is for quite some time now and we've learned to control our impulse buys for the most part. Hopefully I won't get too carried away when I start stocking the new reef tank.
Ted