[APD] Crinum calamistratum care

["Seweryn Bialasiewicz" <s_bialasiewicz at hotmail_com>]

Fellow APG'ers

I recently picked up a healthy looking Crinum calamistratum and was 
wondering if anyone has had any experiences caring for these wonderful 
plants?

A fellow from another list suggested gently raking the sides of the bulb 
with a fork to stimulate bulblet formation. Has anyone else tried this? Any 
success?

Here's what's happening in my tank:

Right now I have it planted in a 8cm deep sandy substrate bottom, buried up 
to the bottom of the bulb (most of it is exposed). I also have lots of 
Trumpet Snails to turn the substrate.

Fertilisation is DIY liquid fert. mix (mix of trace elements, a bit of 
chelated iron, bit of epsom salt) once a week, and  dissolved potassium 
sulphate every two weeks after a water change.

Lighting is two 30W fluoros, one PowerGlow, and the other a NEC 
Tri-Phosphor, situated about 30cm above the substrate.

pH ranges a bit, but usually is around the 6.4 mark. I try to keep the 
temperature in the 26-30 range.

CO2 is the DIY yeast reactor method fed into the base of the outflow hose of 
my canister filter, although I have to put in an airstone to keep my fish 
happy during the hotter parts of summer (like right now!)

kH is around 30ppm
making my CO2 around 20ppm, even with an airstone! - is this possible? 
Without CO2 my pH rises to about 8, due to our buffered tap water.
gH around 110ppm

Any comments or suggestions on how to keep my Crinum happy?
Cheers,
-Seweryn


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