Photos from Bubbletip Split as well as images of SPS growth under VHO and Powercompact.
The BTA's are in my 75 gal under 4X110W PC two actinic and two 10K. The SPS are also in that tank as well as my 80 under 4 X 96W PC. Two 50/50 and two 10K. Effectivly the SPS in the 80 is only under direct influence of two PC bulbs as the tank is 6' long and each PC bulb is only 3' long. The SPS is approx 1' from the right side of the tank.
The BTA's are in my 75 gal under 4X110W PC two actinic and two 10K. The SPS are also in that tank as well as my 80 under 4 X 96W PC. Two 50/50 and two 10K. Effectivly the SPS in the 80 is only under direct influence of two PC bulbs as the tank is 6' long and each PC bulb is only 3' long. The SPS is approx 1' from the right side of the tank.