I currently use the EI method on a 29G/125Ltr tank with 73W light (based on 26G being water I judge the light as being 2.8WPG)

The Lights are 1 x Interpet 55W PC and 1 x 18W Arcadia Freshwater both with Arcadia reflectors.

I find this article quite interesting as I often suffer algae outbreaks on the leaves directly under the 55W which I suspect is due to my fishload which is:

4 x Pitbull Plec (10")
4 x Mollys (10")
5 x Danios (10")
5 x Glolights (7.5")
1 x Betta Splendens (2")

Therefore I have 1.5 x the inch per gallon rule, although my fish have no problems and act quite naturally.

My Co2 stays at 30ppm or thereabouts.

I would like to see more of these articles include details regarding dosages for high fishload tanks, as most that I see just give examples of low fishloads and therefore don't take into consideration the extra phosphate from foods/waste and also ammonia and Nitrate etc that the plants will be using.

andy