Thanks JCO... ....I didn't think about frogs.... I live less then a 1/4 mile from a lake that is several miles across. If the blue racer in my yard likes frogs...He will be happy.
I will put up a fence like you suggested. I planned on one around the FT to keep the tilapia "IN". If I do get 'Tads'...I'll have to try netting them and feeding them to the soldier flys.
I'm supposed to get a small pool pump from some one....I was going to use it as a 'vac' only. I also was thinking about a filter box 'before' the sump. I have some citrus trees, blueberries, lots of perinials and a necturine tree that would love some fish 'poo'.
Some day I'd like to get some of these tanks and put them in my shop. I might be able to get 4 in there and have room for some smaller ones along the other wall. I could have the veggies, just outside....gotta have a dream/plan ....
EDIT....I thought that this picture came from Edgar Sanchez's web site.
TILAPIA FARMING AT HOME (.com)
Now I cant find the 'page' where I got the picture. (???) The tank set up's are really nice !