Hmm, goldfishes are not that fragile. My LG keeps his fishtank watertill it's green and moldy, he saysthe fishes don't like clean water... :) We also have floating ivy andother junk inthe tank... So far none of our goldfishes died... Myfriend's mom raises her goldfishes in a little pond in the garden, andthey grew so large after one year! The lesson here, if there's anylesson, is that fishes are like plants, they like to be out in thenature.. :)