Lighting intensity at 160ft

[Duke4Life]

How would you memike this? I know it sounds crazy but a lot of the wrasses I love come from deeper water.

On a mission with a project.

 

[mcarroll]

It's only a rough number, but if I recall correctly 200 feet is where you get about 1% of surface light intensity, or about 1000 lx.

 

[Duke4Life]

It's only a rough number, but if I recall correctly 200 feet is where you get about 1% of surface light intensity, or about 1000 lx.

So I'm roughly looking for about 5-10% of surface lighting?

 

[mcarroll]

Probably, but it's not simple to calculate light at a given depth since color is affected so much - not intensity across the spectrum. (As well as a million other factors.)

I'd say maybe 5-20% just to be conservative with my guess? 160 feet might be closer to the high end of that guess.

So 10,000-20,000 lux or so?

 

[Duke4Life]

Now what would you use 2 achieve this out of the following 4 options?:

1. 4 bulb t5 3 guiseman actinics and 1 coral plus (Have fixture would need bulbs)
2. Marine orbit pro led programmable (Have)
3. Kessil A150 (Can get locally)
4. 250 w metal halide (Can get locally)

 

[mcarroll]

#2 for sure

This NOAA diagram can give you an idea as to the color:

 

[stunreefer]

For deepwater fish conditioning tanks I have Ecoxotic Stunners on dimmers. I turn the dimmer just enough for LED to turn on, then slowly ramp it up over time to acclimate them to higher light.

Looks like the Marine Orbit Pro you have allows you to adjust intensity, so that could work great. The other options are too bright initially, IME/IMO.

 

[Duke4Life]

Think I'm going to go 50/50 on this. Half the tank bright as TJ saw some porites, poecilipora, and stylophora in a pic shown in an article. The other half dim like the rock rubble areas this wrasse has been found. I'm wondering if they go shallow to feed and deeper for safety and to mate.