I use a mix. LEDs, ATO with lime water from a trash can in the stand, dosing by hand, rodi, timers instead of a controller, algae scrubber in the sump, lots of rock and sand, like my previous set up years ago. I even use a pneumatic timer for feeding - it is 20 years old
I have a refractometer but i use it to check the calibration of my swing arm (much easier when mixing salt water).
new technology skimmer, pump, wave maker. I like the idea of dosing pumps but the cost.
I do lots of DIY.
One comment on the LEDs - i would change to a dimable driver for the whites to be able to tweak the color temp. LEDs are much cooler running and energy efficient. Mine is all DIY. could not afford this hobby if I didn't built a lot myself.
I have a refractometer but i use it to check the calibration of my swing arm (much easier when mixing salt water).
new technology skimmer, pump, wave maker. I like the idea of dosing pumps but the cost.
I do lots of DIY.
One comment on the LEDs - i would change to a dimable driver for the whites to be able to tweak the color temp. LEDs are much cooler running and energy efficient. Mine is all DIY. could not afford this hobby if I didn't built a lot myself.