QUOTE (Uhuru @ Oct 24 2009, 01:05 PM)

Looks great! Pretty cool how mature the tank looks now even though you didn't have any fish or corals.
I'd love to see pics/details of your automatic water changer setup.
Thanks!
I can take pictures tonight, but here's the details on the auto water changer:
- 50 Gallon Brute trashcan
- RO/DI unit feeds it with an auto shutoff valve
- After it's full of 50g of water, I shut off RO/DI
- Mix about 14 cups of Seachem Reef Salt (awesome stuff, I love this salt)
- LiterMeter3 with two water exchange pumps do all the work. One pump pulls water from the sump to a sink in my basement, the other pump pulls water from the 50g reservoir to the sump.
- Every 3.5 weeks or so I have to turn off the LM3 and turn on the RO/DI to refill the reservoir and mix the water
- 2 hours every day (once at noon, once at midnight) I have a Eheim 1260 (overkill, but the only extra pump I have right now) turns on and mixes the water to keep it from settling down. In there I also have a heater for the initial mixing only, otherwise I just let it sit cool.
- The LM3 doses 7 Liters per day, so amounts to about 15 gallons a week water change or so in my ELOS.
- Both pumps run at different staggered times so they don't just cycle out the new water. They're easily calibrated, and pump out exactly the same amount of water as pumping in, so it's very precise. The amount they pull out and put in at a single given time is so little that the water level won't change at all. So it doesn't mess with my auto topoff sensor.
This is the most awesome system ever, because I NEVER need to worry about water changes. When the water runs out in the reservoir, I just turn on the RO/DI (basically open a ball valve) and turn off the pumps, then the next day or whenever it's full, toss in some salt, let it run for a few hours with the heater, and then check salinity. If that's good, then I turn off the RO/DI, turn on the pumps to do their thing, and forget about it.
The Bubble Magus doser I'm getting will do the same thing as well. I'll mix 20gallons of Mg, Ca, and ALK, and it'll dose for me. Right now I'll only need ALK, as my Mg and Ca are high (1600ppm and 500ppm respectively).
The Seachem Reef Salt is my favorite of all time. The levels are so high initially that when they're dosed to my tank, it's perfect. It's never the case that I'm displacing so much water at once that it'll be a big hit to the tank which helps stability. All I need right now is ALK additions, which the dosers will give me. I have Ca and Mg ready just in case when my corals really start to take off.
I am selling my Ca reactor, dosing just sounds so much more controlled and will help keep my pH stable.