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Old 02/06/2018, 08:35 AM   #1
Zalick
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Join Date: Dec 2011
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Kessil a360 and algae growth

Preface: I know I have higher levels of nutrients than I would like and this thread is not about nutrient control.


Background
I've been operating my current tank for about 8 years. For the first 5 I had everything in a smaller tank running T5s with 50%10k and 50% actinic. The last 3 years I've been running 6 kessil a360s. The first 5 years I had pretty much zero algae and I fed very similar amounts. The last 3 years I've been battling algae.

Observation:
I have an enclosed sump that has a cheap LED puck light from Ikea, just to light up the cabinet so I can see around. Its fairly bright and the whole 100gallon sump is lit up. I haven't measured the PAR. Its a soft yellow. I have rock in my sump, from the same rock in the tank, and I occasionally move pieces from the tank to the sump. The rock in the sump has 0 algae. If I move a piece of algae covered rock to the sump, the algae dies very quickly.

Question 1:
Does anyone have any thoughts as to why the a360s are causing the algae to grow pretty quickly while the algae rapidly dies under the cheap puck light?

Question 2:
Any thoughts why the a360s would cause more algae growth than the T5s?


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300g deep dimension, 6 Kessil a360, 2 Stream 3s, C2C beananimal overflow. 100g sump, Vectra M1 -> 114w aquauv -> SRO 5000ext w/ VarioS-6S. -> Vectra L1 return. SpectraPure MaxCap 180 2:1

Current Tank Info: 300g deep dimension mixed reef
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Old 02/06/2018, 08:58 AM   #2
RobZilla04
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Quote:
Originally Posted by Zalick View Post
Preface: I know I have higher levels of nutrients than I would like and this thread is not about nutrient control.


Background
I've been operating my current tank for about 8 years. For the first 5 I had everything in a smaller tank running T5s with 50%10k and 50% actinic. The last 3 years I've been running 6 kessil a360s. The first 5 years I had pretty much zero algae and I fed very similar amounts. The last 3 years I've been battling algae.

Observation:
I have an enclosed sump that has a cheap LED puck light from Ikea, just to light up the cabinet so I can see around. Its fairly bright and the whole 100gallon sump is lit up. I haven't measured the PAR. Its a soft yellow. I have rock in my sump, from the same rock in the tank, and I occasionally move pieces from the tank to the sump. The rock in the sump has 0 algae. If I move a piece of algae covered rock to the sump, the algae dies very quickly.

Question 1:
Does anyone have any thoughts as to why the a360s are causing the algae to grow pretty quickly while the algae rapidly dies under the cheap puck light? The light source from the A360's are providing a better (more intense and/or spectrum)source for photosynthesis thus algae growth.

Question 2:
Any thoughts why the a360s would cause more algae growth than the T5s?Same answer as question #1
Adjust the color scheme and/or intensity. Specifically the white & red/green.


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Old 02/06/2018, 09:02 AM   #3
Zalick
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Quote:
Originally Posted by RobZilla04 View Post
Adjust the color scheme and/or intensity. Specifically the white & red/green.
I should have added that I have my mid day color on the a360 set at 50.


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300g deep dimension, 6 Kessil a360, 2 Stream 3s, C2C beananimal overflow. 100g sump, Vectra M1 -> 114w aquauv -> SRO 5000ext w/ VarioS-6S. -> Vectra L1 return. SpectraPure MaxCap 180 2:1

Current Tank Info: 300g deep dimension mixed reef
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Old 02/06/2018, 09:12 AM   #4
RCS82
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The light isn't on all day or all night is it? It's just on when you are working inside the cabinet right?


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Old 02/06/2018, 09:56 AM   #5
Zalick
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Quote:
Originally Posted by RCS82 View Post
The light isn't on all day or all night is it? It's just on when you are working inside the cabinet right?
I'm lazy and the sump light is on 24/7. I haven't set it up on a timer yet. Its been that way for 2 years.


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300g deep dimension, 6 Kessil a360, 2 Stream 3s, C2C beananimal overflow. 100g sump, Vectra M1 -> 114w aquauv -> SRO 5000ext w/ VarioS-6S. -> Vectra L1 return. SpectraPure MaxCap 180 2:1

Current Tank Info: 300g deep dimension mixed reef
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Old 02/07/2018, 11:46 AM   #6
YetiCrab
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From my experience in this hobby, algae is going to grow somewhere. That's what algae does. It grows. If your conditions in the display are better suited to grow algae - that's where it is going to grow.

Once I setup a proper refugium, with a proper light and turn-over - I have never experienced algae in my dislpay.

So what I would do in your situation:
Ditch the puck light. Pickup an h380 and setup a proper fuge. Never look back.


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Old 02/08/2018, 03:29 AM   #7
oldhead
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Quote:
Originally Posted by Zalick View Post
I should have added that I have my mid day color on the a360 set at 50.
Which tuna do you have? The sun that is made for a fuge and to grow algae or the blue? Also reading through the instructions pdf on BRS maybe try playing with the spectrum. You may need to turn it more to the right to get closer to the antic range.


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Old 02/08/2018, 02:57 PM   #8
Zalick
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Join Date: Dec 2011
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Quote:
Originally Posted by oldhead View Post
Which tuna do you have? The sun that is made for a fuge and to grow algae or the blue? Also reading through the instructions pdf on BRS maybe try playing with the spectrum. You may need to turn it more to the right to get closer to the antic range.
I've got the a360w tuna blue.

I know the algae is feeding off excess phosphates in the water and probably leaching from the rock. Its interesting that I'd never had issues with algae using MH or T5s in previous iterations of this tank.


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300g deep dimension, 6 Kessil a360, 2 Stream 3s, C2C beananimal overflow. 100g sump, Vectra M1 -> 114w aquauv -> SRO 5000ext w/ VarioS-6S. -> Vectra L1 return. SpectraPure MaxCap 180 2:1

Current Tank Info: 300g deep dimension mixed reef
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Old 02/08/2018, 03:07 PM   #9
Zalick
My reef tanks my wallet
 
Join Date: Dec 2011
Location: Portland
Posts: 416
Quote:
Originally Posted by YetiCrab View Post
From my experience in this hobby, algae is going to grow somewhere. That's what algae does. It grows. If your conditions in the display are better suited to grow algae - that's where it is going to grow.

Once I setup a proper refugium, with a proper light and turn-over - I have never experienced algae in my dislpay.

So what I would do in your situation:
Ditch the puck light. Pickup an h380 and setup a proper fuge. Never look back.
I have a great grow light that I'll set up tonight and test.

Interesting that algae seems to favor the Kessil's over T5.


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300g deep dimension, 6 Kessil a360, 2 Stream 3s, C2C beananimal overflow. 100g sump, Vectra M1 -> 114w aquauv -> SRO 5000ext w/ VarioS-6S. -> Vectra L1 return. SpectraPure MaxCap 180 2:1

Current Tank Info: 300g deep dimension mixed reef
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