They can work but they are not my preference. I use similar bulbs in plant holding tanks but not on display tanks. I prefer a mix of coralife trichromatics, colormax, and/or triton tubes. Of course these are more expensive.
There are two types of the grolux bulbs(Lowes or similar) - full spectrum and wide spectrum, I use one of each. They used to be only $5.50 I guess they have gone up.