Number of Kessils Needed

[dochow]

How many Kessil A360WE's would people suggest for a standard 75 gallon, 4' long?

It appears per Kessil's website that 2 would be sufficient, but I wanted to check in on people's experience.

I have both SPS and LPS growing well under my 48" Current Orbit Marine Pro and a two bulb T5 fixture with ATI blue's.

 

[Jimbo662]

I had two on my 4ft 75g tank. They were about 9" above the water.

 

[reefhobby]

Get 3

 

[dochow]

Any pictures of your tank with them? Good growth LPS, SPS?

 

[gus6464]

Always take what the manufacturer "recommends" and multiply by 2 for LED. And in that range you are in AP700 territory which will be a better light overall.

 

[mrsaltwaterguy]

I have 2 over my 75 gallon.

 

[TheWhiteFord]

2 wide ones should do great

 

[Eckolancer]

2 will be ok 3 will fix some blind spots but the cost of three go with AP700. Here is a pic of them on my tank.

 

[Eckolancer]

Btw this is 108 gallon 48"x 26"x 20"

 

[dochow]

Looks great! I've read some bad reviews on AP700. 3 Kessils for a 75 gallon is a huge investment! I was hoping to get by with 3

 

[dochow]

Anyone have experience with AP700? At that price range is there a better light?

 

[chaoha]

I have 2 on my 75

 

[Pfisherman]

You would for sure be good with two. Does your 75 have a center brace? If it does three would be a downright waste.

 

[Eckolancer]

Looks great! I've read some bad reviews on AP700. 3 Kessils for a 75 gallon is a huge investment! I was hoping to get by with 3

My buddy has one after being 100% T5s for 10 years. He finally made the switch and is loving it. I like how much you can adjust it compared to the 360s. I've thought about selling my 360s and buying the 700.

 

[Fishphi784]

AP 700 is essentially two 360s. There are some differences but I cannot recall what they are. That said, I don't believe you will benefit from more par w/ the AP 700 compared to 2 A360s. You can't beat the shimmer or even spread of the Kessils, but you coul pick up three hydra 26s for that price.

 

[gus6464]

AP 700 is essentially two 360s. There are some differences but I cannot recall what they are. That said, I don't believe you will benefit from more par w/ the AP 700 compared to 2 A360s. You can't beat the shimmer or even spread of the Kessils, but you coul pick up three hydra 26s for that price.

The ap700 is a completely different animal than the 360. They are not comparable. The ap700 spread is considerably better.

 

[Fishphi784]

The ap700 is a completely different animal than the 360. They are not comparable. The ap700 spread is considerably better.

I do believe the lens is different. And I have certainly been wrong before. However, I do not think you gain much in the way of intensity as the LED clusters are largely similar. My source of this info is a two BRS videos which I will try to find.

 

[ermartin]

3

 

[Lynn52]

I'd go with 2 360WE and keep the 2 bulb t5 going to eliminate the shadows.

 

[gus6464]

I do believe the lens is different. And I have certainly been wrong before. However, I do not think you gain much in the way of intensity as the LED clusters are largely similar. My source of this info is a two BRS videos which I will try to find.

The ap700 does not use a secondary lens. It uses a reflector. The 160/360 has a primary optic and that's it. The ap700 has the same primary optic but then adds a secondary reflector. The reflector is what makes the spread very MH like. It's not about intensity but spread.