Lightning and Fish Problem

[TBLightningFan]

I have standard fluorescent lighting in my tank now. I noticed after having my light on all day yesterday (approx 10-11 hours) My yellow-tailed damsel no longer had a yellow tail... it had faded to white. When I got up this morning and turned on the light it has gained 50-60% of its color back. Before you reccomend a disease keep this in mind ALL of the fish are eating very well and they are not acting noticably different. Although my Blue Tang is leaning up against a rock in my tank. But it was not rubbing itself against it at all. Just leaning somewhat against it. But the tang is usually nervous and weird when someone is at the tank. The only Water issue is nitrates on the high side.

Am I leaving the lights on too long? Should I have a different color temperature that what the standard fluoreacents give you?

None of the fish have any white or black splotches but I still can help but be nervous that there is a parasite, ick or something. Maybe I should just get a reef safe ick treatment and have it standing by in case it seems go that direction.

 

[hyrookin]

is the tank fish-only? if so, you only have to have them on either when you
are veiwing the fish, or working on the tank. fish do not need light.

but you should get a marine flourescent, if only to enhance the fish.

as for the damsels tail, although you had the lights on, he may have been sleeping
behind a rock,and his color faded. if it stays this way, or something else
odd occurs, you may have something going wrong.

I'm assuming the tang is a hepatus, if so, they normally stay very close
to rocks, sometimes wedging into crevices.

 

[TBLightningFan]

is the tank fish-only? if so, you only have to have them on either when you
are veiwing the fish, or working on the tank. fish do not need light.

but you should get a marine flourescent, if only to enhance the fish.

as for the damsels tail, although you had the lights on, he may have been sleeping
behind a rock,and his color faded. if it stays this way, or something else
odd occurs, you may have something going wrong.

I'm assuming the tang is a hepatus, if so, they normally stay very close
to rocks, sometimes wedging into crevices.

Thanks for the info. the Damsel is looking better. Perhaps the lighting being on too long was stressful on them. After the night off and some needed beauty rest... the coloring looked much better.

The nitrate were high so I did a larger water change than normal and lowered the salinity a bit (which was in the high end of the allowed range). My LFS suggested they were being stressed between the two and stress can cause a pigment change. So we'll see how they do.