I run both (4 AI26HDs & 2 T5 ATI Blue+). From a power perspective, my 55g tank only needs 2 AI26s, but my hood puts the AI26s 4" above the water...resulting in "hot spots" and "shadows". Even w/ 4 AI26s I wasn't "filling the glass box", so I added the T5s. The LEDs ramp from 10% to 50% to 10%, from 7:30am to 9pm. The T5s run from 11am to 3pm. Works great! Only issue is coralline algae grows aggressively (absorbing Alk and needing scrapped weekly).
View attachment 23530
Horrible phone pics, but it shows the "end to end fill" and PITA coralline algae
View attachment 23535