Rootless Blyxa Japonica

Christophe

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Oct 3, 2013
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Albuquerque, NM, USA
Hi all,

An odd and inconvenient situation has shown up in my system -- I've got a bunch of blyxa japonica that seems to grow quite well, but forms few if any roots. It grows fairly quickly, single plants become splittable in 3-4 weeks, looks good & healthy, etc... But every couple of months when I pull it all to thin it out & replant, there are almost no roots on ANY of the plants. As a result, they're kinda hard to replant and keep planted.

As a rosette plant, burying it too deeply is bad for it, but trying to keep it anchored is a continual problem.

Substrate: inert blasting sand
Ferts: all in the water column, about 2/3 base EI levels maintain NO3 and PO4 at reasonable values

No burrowing pests, Malaysian trumpet snails, or anything I think would be eating them.

In my prior setup, I had an Aquasoil substrate, and it seemed very well rooted. Not so in the inert sand. Is this something anyone else is seeing? Or am I just SPECIAL?
 

burr740

Micros Spiller
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Feb 16, 2015
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Mine develop lots of roots in sand w/only water column ferts. Sometimes when splitting one will pull of with hardly any roots, doesnt seem to matter really. The plant still takes off and does fine

Its technically a stem plant fwiw :) So you can plant it as deep as you want.

What I do sometimes is strip the lowest leaves off to give a little more stem to bury. What helps even more is to leave an eighth inch or so of leaf attached to the stem, sorta grabs the substrate when you bury it and helps hold it down.
 
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Christophe

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Oct 3, 2013
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Albuquerque, NM, USA
Thanks Joe! Forgot that it's actually a stem -- I'll try trimming the loose ones up as you suggest, see if I can get them to stick a bit better. They grow just fine, just no roots. Never seen it like that before!
 
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