At first the tiger lotus will start giving you small submerged leaves but eventually you will get all floaters and that will block the light majorly.. I think they have a dwarf form of the lotus, unsure of the name though.
I think it will be 2 big for a 10g tank, shoot it was 2 big for my 29g.
If you keep taking off the leaves which are heading for the surface, the plant assumes it's in water too deep for floaters and reverts to the compact form. For a while, anyway, before it tries again. As soon as you let a leaf or two reach the surface, the thing goes into the all floating leaf growth habit and you have to trim it right back down again to get it back into the compact form. Keep it from ever realising it can produce floating leaves, that's the ticket.