The LED's might not look bright but a PAR meter will tell the true story.
Check out Rockhoe14er's build and the PAR he got at different heights with 14 LED's (12 XP-G cool whites and 2 XP-E Royal Blues). This is over a 29g.
h2oaggie is also using 12 XP-G's over a 29g.
I think you will have to keep your fixture raised and dimmed to not get too much light for a 60p. A reflector would be good for shielding the light spilling out from the sides of the optics; but won't do much for LED's since their light is directional, more so with optics. Not that your LED's would need any help from a reflector anyway, hehehe.
EPC #329 - VPC #59
20L - P. axelrodi, C. macracanthus, H. ocellifer, T. albonubes "gold", Stiphodon sp. gobies, Sailfin mollies
16BF - T. albonubes "gold", A. dolichopterus, Ps. gertrudae "Aru II"
Last edited by S&KGray; 01-03-2012 at 12:52 AM.
Reason: add links