I'm growing water sprite as well- I noticed to day that it and a grass i'm growing have like "hairs " on them. The water sprite that has reached the top of the tank looks like its trying to grow roots heading towards the bottom. These have been doing that for a couple days. The Hairs i noticed to day? Cause for alarm? Otherwise the plants see to be doing well
Should i cut these spots off? or trim thm and get them out of the tank?
I'd like to see a photo to be certain, but I would suspect these are roots. If you have Ceratopteris cornuta, which is the most commonly-available species of Water Sprite, it prefers to be floating. It will develop incredible plants across the surface, sending some leaves above and developing a large mass of fine roots that add a lot of oxygen to the water. It pulls a lot of toxins out of the water too, as it is very fast growing. On its leaves, daughter plants will readily form and these can be gently pulled off and left floating as new plants.
Other species sometimes seen is Ceratopteris pteridioides and C. thalictroides. These will do better planted in ths substrate.
Byron Hosking, BMus, MA
Vancouver, BC, Canada
The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]
Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]