Kessil Advice.

[Todd31]

So im converting from 2 360we's on my 75 gallon to an AP700. Mixed reef, SPS towards top. What intensity max should i start the AP700 at 15 inches above the water line if i had my 360's maxing at 90% about 12 inches above the water?

Any Kessil users input would be great.

thanks,
--todd

 

[vashawn]

I dont have a kessil, but i would start at the lowest point, then increase everyday unitl i reach 50%.
I heard and seen a lot of sps bleached becuase the kessil were on 50% or more the 1st day.

 

[reefiness]

I was under the impression that the ap700 was basically just 2 of the 360s tied together. It pretty much makes sense based on the wattage usage. 90w for 360 vs 185w for ap700.

I think you will definitely have more power coming out at a certain distance from the light because you went from a wide angle spread to a narrow angle one, but you are also moving the unit further from the water line.

Seeing that you were using kessil 360s maxing at 90%, I personally would start around 50% peak, and slowly increase. I would think you will end up peaking at about 75-80% to achieve a similar par rating.

Disclaimer: I'm not a kessil user, thats just what i would do in the situation with my current understanding of those 2 light models.

 

[Todd31]

Thanks for the input, sounds logical. i set my first program for 50% max and ill ramp up from there... I got the light so i can reduce from 3 power cords to 1 and wifi control, hoping all the buggy issues that ive read about during the initial release have been fixed...

 

[coralcruze]

wondering about your first impression about the ap700... perhaps you can share an in depth on your feeling on the specific differances between the ap700 and the a360w's? I have a360w and run them at 100% with lots of shadowing on sps corals... I don't think that the a360 are intense enough for sps whats your feeling? how are your sps responding?

 

[Todd31]

The AP700 seems significantly stronger than my 2 360's were. I had the 360's ramping up to 90% and i could tell that a lot of my corals in my mixed reef were upset with the AP700 on 60% mounted 15 inches above waterline. I've dialed it back to ramping up to 50% for now. I'll report back on SPS success/failure... most of my sps are frags so it will take some time to see how they do.

I think an added issue is exremely low nutrients... So that makes the intense light more intense. So. im setting up a QT to add more fish and upping the feeding to try to register some numbers.

I'll take some pictures and report back.

 

[oseymour]

I was under the impression that the ap700 was basically just 2 of the 360s tied together. It pretty much makes sense based on the wattage usage. 90w for 360 vs 185w for ap700.

The AP700 is NOT simply 2 of the 360s tied together. I've seen this simply repeated all over the place and it's flat out wrong. I was running 2 a360s over my old 50 breeder, when I moved to the AP700 and started at the same percentage. I bleached everything in a couple of days. Before I even realized what was going on.

I have the AP700 covering a 4 foot 48 x 21 x 21 tank. 18 inches above the water running at 60% I still get 50 par in the far right corners. It took me a while to get up to that percentage.

Check out this video from BRS about the PAR settings and spread of a A360 - https://youtu.be/V7XLgLiA0PM?t=1035

Check out the same video forwarded to the section of about the AP700. Better spread better par numbers - https://youtu.be/V7XLgLiA0PM?t=1272