What algae should I get for my refugium?

[Harold Green]

More than likely the change in water parameters. I've often seen the same thing with caulerpa. It bleeds out and dies with a sudden water change. The ceato will most likely recover if given enough light and good water conditions.

 

[lyrical]

There was hardly any water in the bag but enough to keep it damp. I hope it can recover. Ammonia and Nitrites are at 0 the Nitrates are at 20 right now. I bought this light to use.

http://www.homedepot.com/p/Cree-100...ght-Bulb-BA21-16050OMF-12DE26-1U100/205054836

It's a Cree 100W 5000k 1600 lumen bulb.

Info:

Cree LED bulbs look and light like the incandescent bulbs you love and are affordably priced. Backed by our 10-year warranty, Cree LED bulbs shine brightly while using at least 84% less energy and are designed to deliver up to 25,000 hours of light for your home. The perfect replacement for incandescent at a price you can afford, Cree LED bulbs pay for themselves quickly and then pay you year after year.

California residents: see Proposition 65 information

• Brightness: 1600 Lumens
• Estimated yearly energy cost: $2.17 (based on 3 hours/day, 11¢/kWh. costs depend on rates and use)
• Life: 22.8 years (based on 3 hours/day)
• Light appearance: 5000K (daylight)
• Energy used: 18-Watt (equivalent to a 100-Watt standard incandescent light bulb)
• Lumens per Watt: 89
• Uses 82% less energy compared to a standard incandescent light bulb
• Cree LED bulbs are the energy-saving replacement for traditional 60 and 40-Watt bulbs that will pay for themselves quickly and pay you every year after
• Lights instantly, Omni-directional
• Contains mercury: no
• A21 bulb shape with medium base
• Dimmable: yes
• Indoor/outdoor use (damp rated)
• Safety coated glass for shatter resistance
• Features:

 

[pdiehm]

I have the spotlight version.

I put the chaeto that was in a ball in my at tank and ran the power head and light all night. Took the piece that was still together and out in the sump. Will leave light on all day and then run normal light schedule starting tonight

 

[pdiehm]

It's a small piece. About the size of a half dollar coin

 

[lyrical]

Good luck. Let me know how you like the light. Our local HD didn't have the spotlight version.

 

[Harold Green]

I use a standard 26 watt screw in flourscent 65ook in a clamp on fixture.