Correct. It is egeria densa aka Anacharis. If its grown under lower lights with not enough nutrients it will grow very slender and small. When it has the chance to suck up nutrients and has enough light it goes crazy. Anacharis is one of those plants that it grows great for you or it doesnt. I know some various very well experienced planted tank folks that can grow the most challenging of any plants there is but cant grow Anacharis. Im one of them. Lol.