Recent content by BioLogic

I am amazed at how little people actually understand plants and how they grow. Pond, plants, plants not growing well, chuck in herds of fertillizer because plants love the stuff, watch the weedy things grow, struggle with algae and all manner of undesirable things, pond a nightmare, algaecide...

This seems to be happening quite a bit in the last year or so - so many queries on various forums about "sudden death syndrome" in java fern! More on that later! Firstly - java fern really does not do well under high light intensity. All the pics you see of it under high (and I use the word...

It is standard java fern that has been well pruned - all the old leaves have been snipped out. It most certainly isn't cultivar narrow.

Just had a quick look in "Aquarium Plants" by Rataj & Horeman. And after looking at description and pic of E. angustifolius I am satified that this is it. In the description Rataj states that it is newly described (the book was published in 1977!) and from Mato Grosso, southern Brazil and...

Java fern

Isoetes has terete (knitting needle-like) leaves so that's not it. Vallisneria all have a somewhat obtuse leaf apex (like a butter knife) whereas the plant in the pic has a very long and tapering apex (like a dagger). It is Echinodorus angustifolius! It propagates by short stolons which...