hi i accidentally got into this "hobby" ,( Scientist, fish breeder,Chemists, Horticulturists, Biologists,ect ect ) of ponding! 13 years ago my daughter won a fish at the county carnival.he lived alone and sheltered in her room for about 5 years. someone noticed i had a small pond , (basically a 25 gal prefab pond with water in it from the rain with some frogs in it) and gave me 4 white goldfish because their bowl was too small. so i put them in that lil pond.i added a water feature and lights. easy peasy! i later put "gil" the carnie fish in with them, because he needed friends!!! if i only knew!!! and here i am today the proud owner of 23 gold/ maybe koi fish, some fri, 5 minnows,tadpoles and froglets,pond snails, 3 trapdoor snails, 20 clams, a crawdad, 2 cattail plants, a water iris that can not be stopped! a 800 gal hot tub turned into one fish pond. i had to convert a 500 gal loomix cow trough into a fish pond due to their amorous activities! i have only lost 3 fish, two due to illness, one sucked into a pump! the sorrow one feels! i had three pond turtles all 3 ran away!!! all together i have 6 habitats for all my water babies! as for the original 25 gal hole in ground, its back to being just a frog home for those who come and go! all in all after 10 years of ponding im still a newbie! i look forward to trading ideas with everyone! whew !! happy ponding!! p.s "gil" the carnie fish is still with me - daughter has moved on though!