It would be nice to get some stats on the percentage of light loss (i know some wavelengths have it easier) at difirent depths, say 1' and 2', maybe one could compensatefrom there on.
How many lumens do you have over your tank, per area covered by the bulb? I'm asking cause you have nice plants.
I was just thinking that on the smaller tanks the waterfactor would probably not put it that far off (provided it is very clear), once again waiting to get flamed into shape.
Cape Town, South Africa
25 Gal. 54watt, DIY CO2 5 Angelfish, 1 male dwarf gourami + 2 females ,2 female betas, 3 albino corys, 2 pepper corys, 2 CAEs
15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
5 Gal guppy frytank
1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.
On various pieces of furniture, 6 cats!