I used the blue/white light on my 2g Spec and it was beautiful, not overly blue at all and the moonlights are amazing... however it was too much for my little tank. I think it would be more than enough for the 5g, and it looks classy too!
Hello. Yes, I'm sure for a 2g this was overkill! With CO2 I'm sure your plants were very happy but it must have been just too much for any tank mates you may have had!