Planted Tank Guru
Join Date: Feb 2010
Location: Newbury Park, CA
Nope they will produce lobes underwater. In my tank sometimes long runners pop 4 lobed fronds out of Staurogyne or C. wendtii that is shading the growing point but they end up growing just tall enough to get into the light.
Outside the fronds float on the water surface unless crowded out of the water.