For some reason, the pic doesn't display. I've noticed when I'm on PB that my PC displays some pics - I assume JPEGs - and doesn't display others.

Not sure I need it. Your description of the three-pellet lure was good.

How successful are you at catching all the fish before you pump the water out of a pond? Have you considered seining?

I'll look for the DO meter on the net.

Thanks for all this great info. I'm just a year into this 'pond world' but am having a blast. And so what if my performance is slipping at work, savings account is drying up, personal life is, uhmmm, "in decline..." PB forum chat is much better than the therapy/counseling/medication recommended by my friends and relatives.