I picked up some Blyxia japonica, some Aponegeton crispus, and some Anubias congensis at the Minnesota Aquarium Society auction last Saturday. My tanks are low to medium light(1.5-2.5 watts/gal), potting soil substrate with gravel or ecocomplete on top, and no ferts. Hard water (kH = 12) PH 7.5 + Tanks range in size from 20 high to 75 bowfront. I'm not new to planted tanks but am new to these species. I have alot of floating plants in my medium light tanks. Should I remove all or most of this shade for the Blyxia? Will congensis and crispus do ok in a 20 high with low light? Suggestions welcome.