The plant material deteriorating uses up essential nutrients so unless you feed the living plants a bit more than enough there wouldn't likely be enough for the duckweed. The only thing affected by mosquito dunks are mosquito larva and black flies.

Sources: "Changes in USDA Food Composition Data for 43 Garden Crops, 1950 to 1999" Journal of the American College of Nutrition, Vol. 23, No. 6, December 2004, jacn.org "Vegetables Are Not as Nutritious as They Were in the 1950s" Angela Cortez, Natural Foods Merchandiser, 9/3/09, naturalfoodsmerchandiser.com "Reducing the Risk for Second Breast Cancers" Ivanhoe Newswires, 9/9/09, ivanhoe.com -------------------------------------------------------------------------------- Copyright (c)2009 by Healthier News, LLC. Thank you for your interest in the Health Sciences Institute of Baltimore. We do not allow republication of our full newsletters and articles. However, you can post a portion (no more than 90 words, 1-2 paragraphs) of our content with a live link back to our homepage (www.hsibaltimore.com), or a link to the specific article you are quoting from. OOps, I shouldn't have copied so much of this article here. I'm too computer illiterate to be trusted with this kind of info. But I hope the link will show up.

I am a believer. My sister fed her beloved cat only kibble because "wet food makes her poop smell too bad." That cat had kidney failure by age 11. My own cat pretty much refuses to drink water. He used to drink it out of the faucet but he won't even do that now and never out of a bowl. Heck, I'd be happy if he drank out of the toilet! So, I feed him a 5 oz can of food per day and add extra water to it. He doesn't mind that I dilute it and he gets extra moisture that way. My brother's two cats are fed only kibble (the cheap grocery store kind) and both are very over-weight). I think what someone posted above about prey being 75% moisture says it all. PS: I wonder if my cat won't drink water because he getting all the liquid he needs from the wet food????

Oh, good! Glad to hear that's the right one. I first googled the combination of "nutrition calculator" + "your own recipe." That gave me a message board archive for Spark People; one of the messages sounded promising, so I poked around on the site till I found the calculator. It sounds like a great idea! I think I'll try using it myself. Sue