Just received my Aquatic Life T5 54watt dimmable and installing my four Hydra 32hd's later today. Using four ATI Blue Plus bulbs.4 would be way too much $$$ better options at that point for sure.
Currently 5 Hydra 52hd and was thinking of using the Aquatic life T5 with the Hydra in the middle.
If I go with those certainly I will report back, I like new stuff, so always willing to try. With the exchange rate as it is always much more expensive in Canada, duties, taxes etc.