So my bulbs are up for renewal and I've heard a lot of people going for non-specific bulbs saving a packet! What types of T8's should I be looking at? I've seen Growlux but they appear to be about the same price as a normal aquarium tube. I'm after 4 T8s (30w) and I'm currently using 2 daylight, 2 triphos type bulbs from Interpet. I'm not too bothered about the type as long as good colour rendition is given. I've seen people mention lampspecs.co.uk but their shipping works out at nealy a tenner so unless you bulk but its not that cost efficient. All help welcome!