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AaronT · 06-21-2005, 09:12 AM

I don't know about the EI method, but the PPS method has an adjusted dosing scheduled based on your wpg. I run 4x32 ODNO T8's on my 75 gallon and I would equate the lighting to come out close to your retrofit fixture. You will need CO2 if you decide to use it or you will have algae city for sure.

Little tanks take much more maintenance IME. The added height of the larger 75 gallon allows me to prune stem plants only every 2-3 weeks. If you want to stay low tech just use one of the 2x55 watt fixtures and stick to anubias, ferns, mosses, and crypts. Very little dosing is necessary with such a setup. Of course CO2 benefits any setup, wether low light or high light.

06-21-2005, 09:12 AM	#4 (permalink)
AaronT Senior Member Join Date: Apr 2004 Location: Maryland Posts: 4,424 iTrader Ratings: 137 iTrader Positive Rating: 100% Plant Points: 170478	I don't know about the EI method, but the PPS method has an adjusted dosing scheduled based on your wpg. I run 4x32 ODNO T8's on my 75 gallon and I would equate the lighting to come out close to your retrofit fixture. You will need CO2 if you decide to use it or you will have algae city for sure. Little tanks take much more maintenance IME. The added height of the larger 75 gallon allows me to prune stem plants only every 2-3 weeks. If you want to stay low tech just use one of the 2x55 watt fixtures and stick to anubias, ferns, mosses, and crypts. Very little dosing is necessary with such a setup. Of course CO2 benefits any setup, wether low light or high light.