I'm still doing my research too but from what I've read, with that much
light, you are going to need CO2. You might want to try DIY CO2.


"Mark" wrote in message
om...
What type of substrate? the red flourite or the new black stuff I saw
at the l.f.s.? The lights are 4 65 watt cf's. ehiem 2015 cannister
filter. typical glass heater. no co2 plans yet. do I need the co2, and
if yes what is the best system? Any other info will be appreciated.

Thanks,MArk