Hence the problems with Crypt species IME. Maybe it's just my water or the way I do things so inconsistently, but I have come to expect leaf drop going from emmersed to submersed setups with my Crypts (or staring at them wrong for that matter). But I am very pleased with the roots on the Crypt and Stauro species, which make up pretty much the whole DSM Picotope aside from needleleaf java and Fissidens. The Stauro have not had leaf drop, and I can see the roots peeking through the glass in some places, while I can look under the aquarium and see a beautiful root system under the Crypts. And since I've filled it up, even having mixed slow release micros (for the emmersed phase of the Stauro sps) and having relatively high light (18 watts over a 3 gallon, but set high and angled) I have no algae (maybe the baby snails have something to do with that, but there are only a few and they are really tiny).
BTW - Diana, it's all that energy and enthusiasm that got me into so much trouble with my 125 NPT. #-o That said, it's all of those mistakes I made that taught me first hand just exactly what all of you pros had been talking about all along. And now that it's starting to look nice (since I've messed it up about as much as I possible can by now) I can finally smile without hearing sarcasm when Melinda says "it's really neat that it's all natural".