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‘Ecology of the Planted Aquarium’ (new 4th Edition, 6″ X 9″ paperback, 225 pages). USA only!  Price includes autograph and shipping.  If you do not receive a USPS tracking # within 4 days, send me an e-mail at: dwalstad@bellsouth.net   

‘Ecology of the Planted Aquarium’ (4th Edition) PLUS ‘Family History of a Doctor’s Daughter’. USA only! Price includes autographs and shipping. If you do not receive a USPS tracking # within 4 days, send me an e-mail at: dwalstad@bellsouth.net