• Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.

riddle me this???? zoos/lights

R

REEFLECTIONS

here's the situation... i bought a couple beautiful frags from roadking (real nice guy by the way, with some beautiful tanks)
he has t5's, i have t5's. now to the weird part, they will stay open all day under the actinics... but very shortly after turning on the white lights, they close up..... my lights are no brighter than roadkings, does this make sense to anyone?
 
Phyl

Phyl

Officer Emeritus
Officer Emeritus
Different reflectors also create different par ratings with the same bulbs on the same ballasts. The ORP of the tank water will also have an affect on the effective par reaching the corals and could cause them to get more light. A tank in a more bluer spectrum (14-20k) will be receiving less par and the whiter (10K) could be getting more. Carbon utilization may also play a factor as well as nutrient levels. There are so many factors affecting light penetration that even if YOU had 2 tanks sitting side by side they could cause different behaviors in the corals.

You could try putting screen over the tank to acclimate them more slowly to the intensity of your lighting. 3-4 layers of screening removing 1 every 2 weeks should help them get use to the amount of light you have.
 
mikem

mikem

Officer Emeritus
Officer Emeritus
REEFLECTIONS said:
woo hoo phyl... you're last post just made me a large frag....lol
Click to expand...

Roy. One day when you grow up, you'll be an Unspoiled Reef.
Keep the questions comming.
 
F

freeze

I generally place my new zoas in shaded areas on the sand bed until they acclimate to my lighting. I find this betters my success rate with new zoas. hth.
 
R

reneeRN

One more thing to consider, were his T5's High Output? How old were they too. TOo many factors could cause this dilemma. Use an underwater light meter to check how bright.
 
You must log in or register to reply here.
Top