ccs

Can estimative index be applied to tank with low light and slow growing plants?

plantbrain

Yes, it's very very erffective.
You only need to dose once a week after the water change, maybe 2x a week.

This is for CO2 enriched low light tanks.

Regards,
Tom Barr

Borntofish

Hi Tom,
Can you apply the EI system to liquid ferts such as Flourish??

hoppycalif

Tom doesn't post here anymore, but the answer is yes. The principle behind EI is to dose more than the plants need, so they never run short of any of the nutrients. Then once a week replace half of the water to "reset" the tank, getting rid of most of the excess of any of the nutrients. Flourish is only a trace element mix, so it alone won't work. But, you can use Flourish Nitrogen, Fourish Potassium, Flourish Phosphorous, and Flourish in an EI system.