The other day, doing cleanup on Perry's tank, I started cutting rubber bands off the sticks that held dead rhizome pieces. Mostly the remnants of java ferns that didn't make it in here. I wondered if I should give up on bolbitis fern, too. Cut out some blackening leaves. But then realized that was all the original stems. Looking close, there is new bolbitis foliage growing in there. Small, but it's there.
last batch I acquired? I am pretty sure now it's this 'asian water fern' (or african?) which is often sold at the pet shops but really a terrarium plant. I've heard lots of people fail with it- survives for a while, then dies off (but not as quickly as the mondo grass). Well, lets see how long it lasts. Unfortunately, I broke one of the new leaves off while handling it. But it's growing another.