effect of Lights on all night and sleep?

The fish thinks it's still day time so they remain in motion, searching for food etc. It must be exausting, if you were constantly running around all day barely stopping and don't sleep you wouldn't grow well and probably not eat well. Get a timer, they will turn it on/off for you

I don't know about arowanas. I leave one of my lights on all the time and the fish seem ok.

Why do you leave the lights on at night? That's super wierd.

batang_mcdo;3641912; said:

thanks So far my super red which has the lights on at night has good appettite, but i think i'll adjust the timer, maybe turn off the aquarium lights at 4am to give it 2-3 hours rest before sunrise

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2-3 hours is not sufficient, you need around 10-12 hours of sleep, so do the fish.

I think you're messing with their biological clocks. It can't be good. In order for humans to function properly, we not only have to sleep, but we must enter into a deep sleep called R.E.M. (Rapid eye movement). Without it, we (Humans) can't survive. I'm not sayng that fish have the ability to enter into R.E.M. I've not ever heard of any clinical studies on fish sleeping. I'm just saying that it can't be healthy to keep a light on all night long and throw off their biological clocks.

batang_mcdo;3642097; said:

thanks i stArted keeping the lights on when my aro was still small and it would be startled when the lights were off it seems to be more confident when lights are on also for arowanS lighting enhances their color

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Cute . . . Almost reminds me of a child who's parents have to keep a night light on because the child is a afraid of the dark.