Been frying my corals because of this!

[revhtree]

Finally got a Neptune System PMK (par meter) and was able to test it against my 10+ year apogee par meter and the PMK is testing about 80 par higher than my old meter. Which really explains a lot of confusing coral deaths. I love the long wire on the PMK and that I can place it anywhere and just eye the reading on the controller display, ipad or phone. I know this sounds a bit like a commercial but it's not, I'm just really happy with it so far and super happy to have some better data on par levels in the tank!

• So with all that said I am wondering how many of you use a PAR meter of some sort and what brand do you use?

• Have you ever found discrepancies between par meters?

 

[Crabs McJones]

I use the Seneye, and it seems to be pretty spot on. With my lighting setup, and having the PAR numbers from BRS's videos, I've dialed my lights in right to where I want them. The AP700 and the T5's give me a 250-360 blanket of par everywhere in my tank. I also love that the seneye is able to do Par, Pur, Lux, and spectrum.

 

[CNDReef]

I picked up a Seneye during their sale and probably going to cross reference it with the clubs apogee meter when I get a chance.

 

[revhtree]

I picked up a Seneye during their sale and probably going to cross reference it with the clubs apogee meter when I get a chance.

Would like to see that!

 

[Flippers4pups]

I don't use a par meter, but have used a lux meter using the conversion math that @saltyfilmfolks provided some time ago.

With that said, I set my light intensity to @Dana Riddle's 2016 macna presentation. His findings have been spot on in my system. 200-250 par does seem to be the sweet spot for my SPS. Lots of flow and 8-9 dkh with N03 between 5-10ppm and P04 below .02.

@revhtree, what was your par before and now after?

 

[revhtree]

I don't use a par meter, but have used a lux meter using the conversion math that @saltyfilmfolks provided some time ago.

With that said, I set my light intensity to @Dana Riddle's 2016 macna presentation. His findings have been spot on in my system. 200-250 par does seem to be the sweet spot for my SPS. Lots of flow and 8-9 dkh with N03 between 5-10ppm and P04 below .02.

@revhtree, what was your par before and now after?

Nice info! Can you link us to the reference material?

 

[Flippers4pups]

Nice info! Can you link us to the reference material?

I'll dig it up.

 

[Reefinny]

Tagging along

 

[Reefinny]

Here is the video I just saw yesterday for the first time thanks to @MJC

 

[Flippers4pups]

Here's some of Salty's conversation on this. It's a read, but it's in there.

https://www.reef2reef.com/threads/lux-meters-to-check-led.314285/

Dana's presentation:




Sorry David, but you'll have to read through and watch the video to pull the info. If you have the time.

Fins up!

 

[Dsnakes]

I would like to get one soon. To see how much light I get with 2 Kessil ap 700 across my 6’ tank. I may end up looking for a couple t5s in the future depending on the shadowing.

 

[Flippers4pups]

Here's one on T5 lux to par conversion:

https://www.reef2reef.com/threads/par-to-lux-conversion-real-world-t5-numbers.281126/

 

[Luno]

I use the Seneye, and it seems to be pretty spot on. With my lighting setup, and having the PAR numbers from BRS's videos, I've dialed my lights in right to where I want them. The AP700 and the T5's give me a 250-360 blanket of par everywhere in my tank. I also love that the seneye is able to do Par, Pur, Lux, and spectrum.

When you say blanket of par, do you mean your tank sits blanketed between those two numbers? That's a fairly close spread I'm impressed! Does your rock structure had many high points??

I don't use a par meter, but have used a lux meter using the conversion math that @saltyfilmfolks provided some time ago.

With that said, I set my light intensity to @Dana Riddle's 2016 macna presentation. His findings have been spot on in my system. 200-250 par does seem to be the sweet spot for my SPS. Lots of flow and 8-9 dkh with N03 between 5-10ppm and P04 below .02.

@revhtree, what was your par before and now after?

200-250 seems a bit low doesn't it? I'll assume that's in the presentation that you linked. I couldn't imagine the best comes from sps so low, but hey I'll be interested in new thoughts and the read!

 

[revhtree]

I would like to see some par numbers from different reefs at different depths.

 

[CNDReef]

I would like to see some par numbers from different reefs at different depths.

Definitely would help figuring this whole topic out

 

[Luno]

I would like to see some par numbers from different reefs at different depths.

What was your numbers out of curiosity? I don't think I saw it further back

 

[revhtree]

What was your numbers out of curiosity? I don't think I saw it further back

Well I am acclimating my corals back to LED lights right now so I am in the hundreds where the coral is at. I'll get more details later.

 

[siggy]

I would like to see some par numbers from different reefs at different depths.

the boss dishing out work on a Holiday..Geeze
@pelphrey just did a video using his seneye

 

[Flippers4pups]

When you say blanket of par, do you mean your tank sits blanketed between those two numbers? That's a fairly close spread I'm impressed! Does your rock structure had many high points??



200-250 seems a bit low doesn't it? I'll assume that's in the presentation that you linked. I couldn't imagine the best comes from sps so low, but hey I'll be interested in new thoughts and the read!

Yep, anything over that can send them into photo inhibition. In other words, they shut down when receiving too much intensity, stop producing sugars that feed the zooxanthellae in their tissue. Essentially stop growing till the intensity is reduced. Midday sun, they shut down.

Watch the video and you'll see.

 

[Reefinny]

I want to check mine. 3 tanks 3 different light set ups.

Also putting in a sps only system with Halides.

Definiatly on the want list.