Some fish afraid of light....

[BlueKiller82]

So I have come to the conclusion that my amphilophus xiloaensis are afraid of my aquarium light. Fish always hide and will sit at bottom of tank. Before knowing it was the light I added some convicts and giant danios. These fish all swi, around while light is on. I rearranged tank, added more plants, no luck.

I have a 4' double tubed fluorescent light. I removed one bulb, I put a different light on one end of the tank, xilos still hide. I have light on a timer from 4pm-8pm, so if I go over to tank before light comes on fish swim around and are more active. Once light comes on they disappear and will rarely even come out for food.

Looking for suggestions or more to try.

 

[Angler]

Don't rearrange the tank anymore. i would set the lights to be on for 8 hours or so. They will get use to it and start to be less shy. Just give it time.

 

[woofy]

What about a different color light? One with a pink hue? Or 50/50 half daylight half actinic. This helped me.


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[ska_kid]

Some fish can't see red so with a red light they won't know the difference

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[woofy]

Some fish can't see red so with a red light they won't know the difference

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Its not so much about the color as it is the intensity.


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[Fish on Fire]

Duckweed?

 

[D7620]

yeah, you gotta stop rearranging the tank so they can settle down to it.

 

[Peanut_Power]

Put some printer paper under the light, this will help diffuse it some, keep adding paper till its dimmer in there. Just don't catch it on fire. . .LOL

On the other end of the spectrum, I have fish that just about kill themselves each time the light is turned OFF. I've since discovered that using a night light or some other sort of ambient light cancels this entirely.

 

[BlueKiller82]

Thing is they were fine for a year, I had eight of them I was growing out, sold 4 of them and then they always hid. So over a month I was trying different things, only rearranged the tank once and don't think that was the issue as once the light is off they are very active. I tried a 2' light that barely lit up one side of the tank and they would still hide on the opposite side.