So I am a new pond person and excited to be here. I am in the US in New York and the pond is about 10ft by 12 ft and about 2 ft deep (no clue how many gallons that is) it also has a waterfall going into it, filter, sump, aerator. I do not want Koi but am looking for some interesting fish or creatures to keep in the pond that can withstand the winter and are somewhat self sufficient since sometimes I am gone for a couple months at a time. Right now I just have some tadpoles, red rosy minnows and some trapdoor snails. I was considering weather loaches and am open to any interesting fish that could do well. I have a built in cave. Not sure what else to add but hopefully can get a few suggestions here. I wouldnt mind some very small catfish that could survive the winter