ceg4048 said:I think JamesC did a smashing job with his website. It's a great reference.
ceg4048 said:That is also why "noonday siesta" does not work. This is a transient condition which only helps algae.
As far as I can tell, the ammonia ejection ... is a structural breakdown and loss of nutrients and ammonia across the cell walls.
Any nutrient deficiency (not just carbon) causes this breakdown of various systems within the plant. Growth is disturbed while the plant attempt to reconfigure for the new set of environmental conditions.
What I'm saying is that there is no data that shows the siesta improves plant health or growth at all. Since health and growth are the key priorities siestas are counterproductive in this regard.
rayi said:Right, I think this is the same effect that causes Cryptocoryne rot, for example?
Ah ha! So if we have a high light tank with CO2 is this the same effect that means you get algae everywhere? Is the benefit of CO2 that the plants get going nice and quick and tidy away the ammonia is short order? Or is there anther factor I am missing?
I think the Siesta is putting a slight brake on my plant growth, although I'm not noticing any new algae, will let it run for another fortnight and see - like you say - maybe they don't appreciate the interruption. What about midday bursts, anything to support them?