You could use a combo of Life-Glo and the Sun Glo, or two Life-Glo. The first combo would be a warmer white (but shouldn't be as "yellow" as what you have now), second a clean crisp white a bit on the cool (blue) side. Some find this "green" but I rather like it. Both give a good colour rendition of fish and plants. , and third a cooler white. The Kelvin of each of these tubes indicates the colour temperature, and with the Life-Glo at 6700K, the lower K (Sun Glo) means more red so a warmer white. I've had good plant growth with both these combos, so it is really a matter of your colour preference.
Your Aqua-Glo is red and blue with scarcely any green, so it is purplish and while some people like this (it accents red and blues obviously) it is a much weaker (less intense) light than the other tubes. And at this point, I am going to suggest less expensive tubes, as with two T8's over a 240 litre/63 gallon tank (presumably 4 feet length) you could use these and not have difficulties. I use a combo of Sylvania 5000K and Philips 6500K over my 70g, 90g and 115g tanks. I'm assuming you use 48-inch tubers as these would be the standard 40w you mentioned. They are now available in 32w instead of 40w, but produce the same intensity of light but with less energy.
The photo below of my 70g with the Sylvania 5000K and Philips 6500K combo will illustrate. This is a fair bit of light, but you can use floating plants as you will see I do to shade this and keep algae at bay. Plus watch the duration; this tank has 7 hours of light daily.
Byron.
