Out of 5 apongeton hybrid bulbs, only two ever sprouted -- the other three got soggy and melted. The two apongetons I have, though, could not be more different.
One has curly-edged leaves, slightly brownish in color, and the leaves get so long they reach the surface of my 10 gal tank, and float a good 8 inches on the surface.
The other is a beautiful spring green, with very straight edges on the leaves, but the leaves are still 3 to 4 inches from reaching the surface of the water. It grew what I thought was going to be a flower stalk, but instead it has 3 or 4 baby plants budding, beginning to drop roots.
In order to mimize the tangling I was getting in the taller, browner plant, I have been trimming off the ends of the leaves so that they just touch the water's surface. It has reacted by sprouting all kinds of extra leaves, almost faster than I can keep it trimmed.
My questions are;
Why do they look so different if they were from the same package, supposedly same species?
Is it ok to continue to trim the leaves?
Will the baby Apongeton break off when they are ready, like my Java fern did? Or will I need to cut/break them off once they reach a certain size, like with a Spider-plant? (chlorophytum comosum)
The brownish one is almost center in this photo. The straight leaved one is almost out of frame, left-most edge right underneath the thermometer, and next to the Tardis.