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Does anyone have an opinion as to use of the spray LED sealants? I've read lots of mixed reviews. I'm less concerned about minor PAR loss and heat transfer efficiency and more concerned with corrosion. I have an anodized heat sink but it's pre-drilled and there is exposed aluminum in any...

Thanks Ryan! I’m not sure how many you’d need - there are a ton of formulas floating around – I think the one I see most is based on surface area – so, in inches, L”xW”/16 for SPS = for me that would have been 54 (4 of my “68” are moon so they don’t count) so I’m 10 over but it was really...

I sort of feel like I'm talking to myself, but hey, what the hell, the build continues. I found a perfect “box” - a metal enclosure such as what is used to house the “brain” of a home security system so it looks like I’m settled on “choice B”. Thank you eBay. I did a search and someone in NY...

I think I'll be testing /setting up the drivers tonight. I think I might need to wear a welding helmet for the task of balancing the strings. They are really bright. Kind of like staring at a camera flash… Next steps: *I need to come up with a way to house the terminal blocks, and...

Thanks for all the guidance. I found a UV star that was behaving oddly. Still tested ok but I got inconsistent results testing from the pad itself. It tested fine from the wire off the next led which was weird but I was looking for anything so I redid that star and both wires leading to it. I...

I'm really confused and feeling a little lost - I went through the entire fixture, one star at a time doing a diode test as described in detail on an RC thread. It showed all my solder joints were ok. I then did the “short” test. Again, as described on that thread - the difference was I used...

I set up a single driver to test parallel strings. First test was the royal blues. Went swimmingly. Then on to the mixed colors. Not as well. The "right" string/fixture was spot on. Left not so good. It fired for 3-5 seconds and then went dim. I tried a few times. Right string great, left - dim...

I think I forgot about Ohm's Law and tried to measure current directly off the driver. I think the law is current = amps or volts \ resistance. Well without the driver pushing voltage through the stars resistance would be =1 so the current would be unchanged from the amperage/ voltage since...

awesome, thanks. I think I have it - I'll try you tomorrow. 11:30 on New Year's Eve is probably not a sane time to discuss an LED build :)

Finally getting my build underway – I have all my LEDs wired – I just need to figure out the mean well side of things… Plan is to run 3 sets of parallel strings as follows (plan includes: 1.0 OHM 1% 5W resistors that I will use for each string along with 1A fast blow fuses to protect things...

I think I finally narrowed down my skimmer problem. If you've followed this you might remember that I picked up a SRO 2000 XP (thank you Craigslist) and it seemed superior to my bubble magus 6 which was undersized for my system. The RO was a good size in terms of gallon capacity but a bit too...

Nice job but seriously thanks for adding to my holiday stay-cation to-do list. Between the wife and kids I barely got a water change in and I've been home since Saturday. Anyway I'm not sure I'm ready for one of these. My collection cup holds a 1/2 gallon and it can easily fill in 2 days

Can't wait to see this. I'm not sure how a hammer will help though.

Well I'm just about convinced. Maybe I'll leave the QT set up. Josh, you'd asked for a spawn of the RBTA way back when. Well it's not one of the normal 50/50 splits so its a little small but they grow pretty fast. A little of the tang will live on :) I also may have one of those no-name pumps...

Well the fat pig RBTA split. I guess the big meal was too much to keep it together. I'll think about the plan but I'm a QT guy so there's no way to sneak it. Just not sure if I shouldn't take it to mean something that maybe I need to wait a but longer. Nah... If the LFS has one I think I'll...

I did look in the overflow but it has a cover so it would have taken some Houdini type antics to get it there. Down to the sump is more unlikely given the strainer on the drain pipe. I think the bloated nem was all the evidence I need. Question is, do I try it again or do I assume that I have...

It would be nice if it was just hiding but I doubt it. Not much of a hider (it's been 3-4 days) but I'll keep hoping, I guess. Maybe the tang police showed up after I was asleep and took it out.

Do the tang police have a homicide division with detectives? I had a very nice juvi naso tang that had been in QT for 6 weeks. (a bit overkill but he had a tank-mate added at week 2 so I decided to restart the clock). I added both new fish to the tank on Thursday and all was well. Both...

well, I have the 3 checkers and the red sea kit as well - with the checkers, I try to be very careful and follow the directions. Of course different people have different experiences but I have been uncomfortable with the Ca checker, enough so that I double check with the Red Sea - sort of...

The Hanna Calcium isn't very good. It's really finicky to use and my tests tend to be all over. Search RC - bad reviews FAR outweigh good. There's a thread on RC where some engineer developed an alternate method. Hanna said its acceptable but it also seems too difficult. I'm colorblind so I...