The right light for a Nenny

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I have 2 nennies in my tank a green carpet and a magnificent. Now the green carpet is as happy as a pig in you know what but everytime the magnificent gets to much light it sulks. I have now covered the tank section where the nenny and my LPS's are with 40% shade cloth and the change in them are dramatic. I doubt that the LPS has light shock because they've been in the tank for almost 5 months now.

Ok the question is, we all know nennies like bright light but do we
distinguish between bright and extreme light or rather what is the real lighting requirements of nennies?
 

Alan

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CB what lighting are you using at the moment?
 

viper357

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what is the distance from the nenny to the light
 

viper357

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Is it a new addition? When you say "it sulks" what do you mean by sulking (what does it do) and how long does it sulk for?
 

Alan

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Wow those lights are high, i wouldn't say you should have a problem. Maybe use egg crate as a diffuser and remove it for portions of your lighting period gradually extending the period until the nenny has acclimatized.
 
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its been in the tank for a month now Dean, the tentacles deflate and it just looks miserable. Its gotten much better since adding the shade net.
 
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Hi there

When you say

Its gotten much better since adding the shade net.
is it inflating more ? - as this would be the natural response to NOT getting enough light - as it is an attempt to expose more surface area to light .

The light is most definately not enough at the present height of 80cms 150 watt's aint gonna do much placed that high from a coral.

I assume your LPS is now also inflating more ?But more likely a response to a lack of light.

This is unfortuanately not allways a sign of good health.
 
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What are the signs of a healthy Nenny then ? My nenny is huge during the day. I have had it for over a year now and it always does this. Even with the MH on ?
Sorry for the thread Hijack ...
 
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Thanks BB i'll take note of that, its just previously my torch coral would not extend its polyps at all and now there is polyp extension. Same with my shroom's they looked really poor under the bright light all shriveled up, now they nice and open.

Also guys plz remember this was a 150x45x45 fresh water tank so its really not that deep.

Would you suggest I drop the lights down again?
 

Alan

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CB what globes are you running and does the fitting have a some kind of UV shield?
 
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Alan its an Aquamedic Aquasunlight 150, it has 2 150W MH and 2 T5 actinics. Yes the unit has a UV shield.
 

Alan

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I would try the egg crate filter method and once the corals are able to run a full light cycle then start lowering the lights slowly.
 
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yupp. i removed the shade net for about 1/2 hour on sunday and had a sulking nenny again. Gonna have to put it under T5's or lower down in my nect tank
 
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Great lights Copper. I would get a deeper tank if i were you. try running just the t5's. 45 is very shallow
 

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