thank youvery much for your reply. As to your question why i opt for turtle instead of fish, well, actually, previously i put gold fishes in it, more than 15. cats from our neighbors always come to our place. they can enter anytime since the front fence is an open steel fence. whithout us knowing it sometimes its been eaten. One time, we saw a bull frog. so the ending, all the fishes were gone. Also, water here in our place has a lot of chlorine. iguess its about time i buy a book on how to take care of fishes in the pond. Sad to say, i am a beginner on this. Anyway, speaking of fish,in case i put back fish on my pond, how many fish do i have to put and what kind of fish brings good luck. best regards, Rowena