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Paul, Welcome back! I've been lucky enough that the tubs horrida I got from you has done well for me, just LMK when you're ready!

It is definitely very easy to overdo it in the beginning, and cause issues such as STN, by trying to move too quickly. But once you get past the learning curve, it becomes a little easier to control the system. The cost is still pretty expensive, esp for larger volume systems, but it's cheaper...

I used to use a full blown zeo system, and still use a partial system currently. Like any other bacterial nutrient export system, it relies on bacterial biomass to lock up N and P, which is then exported via skimming. The bacterial reproduction is pushed with some sort of energy source or...

Eric - nice micro! Can you put me down on the list as well for a next generation frag? Thanks!

radiolunatic - LMK when you want to pick up your frag!

seminolecpa or Lapsan - anyone want their frags?

Hey Norman, Ian's holding a bonsai frag for you!

Norman, sounds like a a good idea, sort like a treasurer, we'll call him the keeper of the BAR coral repository

Haha - Ian picks up for everyone!

Sure, it's possible, but I would do a few readings to confirm and see if the result is consistent. IME, it takes a little bit of practice to get used to using the Hanna. But in terms of the reading being possibly falsely low, about the only I can think of to cause a false low is to not empty the...

ok, so the number was 50 - that makes the lucky winners are Mr. Ugly and radiolunatic LMK when/where/how you want to pick up!

Hey Hiep - how long did it take to get yours - I'm going on two weeks and they haven't shipped yet

Gomer - good point about the flat response curve of the sensor. Did you get you data from this page:

Nah - I wasn't suggesting a PAR p*ssing contest (is that what you meant?) :D I just was curious what the difference really would be between meter calibrations. Does it matter - no, but just curious, esp since whenever a new bulb or reflector comes out, there's a lot of data that gets thrown out...

Wow - great service from Apogee. I just contacted them out of curiosity since my order hadn't shipped yet (although it has been two weeks already!) and they're willing to change the calibration for me. Anyways, if you guys ever want to compare meters and see what the different calibrations come...

I was wondering the same thing, as I bet these meters are probably designed for use by the agricultural industry, or the "horticultural" industry, and from my understanding most halides used to grow plants are in the lower kelvin range. That said, I don't know if that would change the ability of...

Well, here's a page out of Apogee's online manual showing the difference in readings between the two calibrations. Of course, I saw this after I bought the meter and had only read the advanced aquarist article where the sunlight calibration matched the much more expense Li-Cor meter. Anyways...

Gresham, Which mode do you usually use, sunlight or electric. I know it probably doesn't matter as long as you stick with one, but I'm just curious. Agreed, depth and relationship to the bulb are vital to seeing how a bulb or reflector performs. Anyone - did you mount the probe to something...

Hey Eric, That is a beautiful coral! I don't know if I qualify, as I am new to the DBTC-X, but if I do, I'd like to throw in my guess - 72

Hey guys, Thanks for the replies! Hey Art - you bring up a good point which I didn't realize earlier, but I think is the issue. I pretty much use only the 100mm macro when I shoot the tank cause its' such a great lens, esp on FF, but it does mean that when I shoot, I'm usually 1-2 inches away...