[David Grigor]

I will say I had a 150W HQI Aquaspacelight with 10K AB bulbs ( Harv has it now ) and thought most Acropora corals did surprisingly well.

With the 150W HQI you can get good color from captive raise corals where you can ask the buyer what type of current lights and approx. location ( particularly club members who aren't out to make a buck ). However, wild caught with 150W HQI is going to be very hit or miss.......

If you going to get real serious into Acroporas go with the 250W HQI. If you just going to dable and primarily non-sps then you should be able to find plenty of corals that will have good color under 150W HQI from locals but your choices will be more limited.

 

[David Grigor]

Generically speaking a 250W HQI will likely grow better then 150W HQI however, there is more than just lighting involved and also depends on the coral in question. Doing your homework and getting corals that are better suited for 150W HQI ( again better from locals ) will only help and growth will likely just fine for that situation.