suface film and plant dips
I have a rack four 15g tanks which I use to experiment
with various Plants and substrate systems. In one I have C. wenditii and
C. Baslli (sp?) potted in terra cota (sp? again) trays with topsoil and
vermiculite ala Kelly. I also have some Java fern and willow moss
attached to rocks and drifwood. Inhabitants are 3 juvenille Kribensis,
and SAE and an oto and a cory. I'm getting that translucent white film
on the top of the water. I've had it before and skimming the top over a
period of time seems to eradicate it. I remember it being talked about
before but forget what was the collective wisdom. As I recall some
thought it was a bacteria some thought it was due to an iron surplus. I
change 20% of the water weekly and the tank is far from over stocked.
Filtration is by tetra phase II sponge filter driven by aquaclear 201
Secondly, I'm familiar with 5% bleach solution to eradicate snail eggs
and algae on new plants. Isn't there also a procedure using potassium
permanganate (sp? yet again)?? Where does one get this stuff and how
much does one use?
Thank you all for your help.
Easthampton, MA USA
mmorriss at sophia_smith.edu