Echinodorus tenellus with less light

[russchilds]

Hi,
I have Echinodorus tenellus growing really very well with c02 and 37W of lights (2x 11W T% and 1 x 15W T8). I also use TPN+.
If I stopped using the the 2x 11w and just kept the 15W would the tenellus suffer badly? I will keep the flow, c02 & TPN+. Its a Juwel Rekord 60L.

What are your views?

Many thanks,
Russ

 

[ceg4048]

Hi,
Less light means the rate of growth will decelerate. Since no one knows the actual PAR values, it is impossible to predict whether a 60% decrease in energy will produce PAR values below the Light Compensation Point.

Cheers,

 

[russchilds]

CHeers! I'll just switch the 2x11w off but won't take them out of the hood. If they start to suffer I'll just turn the 11ws back on. I'll take some pics of before and after

 

[chilled84]

A prblem i found when growing that plant in low light was it grew very slow and it didnt stay low to the substrate, It tends to grow towards the light.