Be careful if you have to treat your pond with sturgeon in it. As they won't tolerate some treatments eg PP so you have to find something else or remove sturgeon to treat but then not treat all contents of pond. Treating isn't impossible but just bear it in mind
Thanks. Yes I wouldn't have any where to put one if I had to treat the pond. I would need sturgeon same treatments. Still not decided yet. As I only have a few koi .and would like a few more 1st.