| | Re: PAR data collection
Here is another tank at the low end of the light range. This time I used the "cut and paste" commands to copy the form, and deleted some redundant stuff.
PAR DATA COLLECTION
Aquarium size: 20 tall, 24" x 12" x 16"
Type of light fixture AND reflector: power compact, flimsy mylar reflector
Number of lamps, bulbs, or tubes, and wattage: 1 power compact, 65w
Age of lamps, bulbs, or tubes: 3 months
Other information: Coralife fixture and tube, 10,000K
Distance from light fixture to substrate: 20"
PAR VALUES MEASURED AT SUBSTRATE: 16
Comments: There is a very thick background of vallisneria which blocks some light. Using the old watts per gallon rule, this is high light (3.25 wpg!). Now I know why nothing will grow on the bottom of this tank except moss.