That may be it Seffie, I knew the full output did not last the full 12 months.
I am tempted to just add 2 T5's, run the 55w as whites and 36w as actinics and see how I go with that.
Then I could see what the arrays are like.
If Rabutt can give me some idea of what equipment would be needed to make the LED's and perhaps a wiring diagram, I could probably do that though. Would maybe forgo the Linear T5's then. The tubes are horrendously expensive up here.
In an ideal world, these new arrays would live up to expectation and be a nice addition to the lighting I already have. LED's do interest me due to the reduced electricity and not having to change a bulb.
I have found the dual aquarays for £140 a set, 3 sets of those (£420) would give what is recommended by TMC, yes not enough for the tank, but would it be enough in combination with my PC's?? I like the shimmer and they would hardly use any electric.