Par and LED’s

[JackerVenom]

Hello everyone I have a question?

I did a par reading on my tank for the first time. I noticed that the par is at 30 on the sand bed and 100 at the top. I’m currently running 1 hydra 26HD on a 9 gallon. Yes I know it’s over kill, but was bought for when I upgrade so I don’t have to buy a new light.

BRS recommends the mounting height to be 13 inches off the surface so I placed mine at 12 which is as high as my mound will go.

My question is I’m adding sps like birds nest and encrusting montipora so I wanna make sure my PAR is more then 100 for them, how should I go about this?

I have already tested what % I need the lights at to reach the 250-450 par range at the top of my tank. Which would cause the sand bed to be 100-120.

Should I be making adjustments now and at what rate? Sps is already put in tank as of yesterday.

 

[Chibils]

It's common to acclimate new corals to a new light. I would increase the intensity slowly every day over the next 10 days or so until you hit your desired PAR reading.

 

[JackerVenom]

It's common to acclimate new corals to a new light. I would increase the intensity slowly every day over the next 10 days or so until you hit your desired PAR reading.

How much a day like 1% each colour? Or 5? I’m not sure what would be considered too fast?

 

[Chibils]

What intensity do you have it at now? And what intensity did you need to set it at to achieve the desired 250-450 range in your tank? I would divide that by 10, and that's your daily increase interval.

For example, if you are at 25% now and need to get to 75%, then you're increasing your intensity by 50 points. Divided by 10 days, that's 5% per day.

 

[JackerVenom]

What intensity do you have it at now? And what intensity did you need to set it at to achieve the desired 250-450 range in your tank? I would divide that by 10, and that's your daily increase interval.

For example, if you are at 25% now and need to get to 75%, then you're increasing your intensity by 50 points. Divided by 10 days, that's 5% per day.

You hit it on the nose! That’s exactly what I need. It’s at 20-25% depending on the colour and need to be at 77%