My fish

[nemo98620]

I was wondering why does my fish hide when I turn off the lights and when I turn them on he stop hiding

 

[NoohpyT]

He's probably finding a spot to sleep when the lights are off

 

[nemo98620]

He's probably finding a spot to sleep when the lights are off

Oh OK but it's day time right now

 

[NoohpyT]

Oh OK but it's day time right now

Usually the fish isn't going to know what time of day it is, that's why we use lights to simulate the patterns of the sun

so when we turn our lights off the fish is going to think it's nighttime

 

[nemo98620]

Usually the fish isn't going to know what time of day it is, that's why we use lights to simulate the patterns of the sun

so when we turn our lights off the fish is going to think it's nighttime

Ok

 

[blaxsun]

He's scared of the dark...

 

[argiBK]

In the ocean, many predators hunt by darkness; storms also darken the skies greatly increasing turbulence in the water, it’s in your fish’ instinct to seek cover and safety during these times.

 

[Sharkbait19]

When the lights go out, the fish equates that to the shadow of a large predator. Instinctively it goes for cover until the danger has passed (indicated by the tank brightening).

 

[littlefoxx]

If this is the same fish and same tank you keep posting about then its another indicator that your tank isnt ready for fish. Clowns dont hide typically, so if they are all the time thats an issue, in your case tank size and water issues. I do wish you would listen to advice given on these forms and let us help you…

 

[littlefoxx]

Tagging some experienced people here too, please listen to them.

@bluemon @vetteguy53081 @Jay Hemdal @Slocke @lion king @MnFish1 @Rmckoy @blaxsun
@Anemone_Fanatic

 

[nemo98620]

In the ocean, many predators hunt by darkness; storms also darken the skies greatly increasing turbulence in the water, it’s in your fish’ instinct to seek cover and safety during these times.

Ok

 

[bluemon]

Everything everyone here said are good points. Fish we usually keep in the hobby are diurnal (because we want our fish to come out when there is light), so they will hide instinctively when it gets dark out, and/or it will signify sudden changes in the environment like a predator shadow, etc.

Fish will still develop a biological clock as they get accustomed to our tank which means they will not be as phased by a sudden darkness, especially since they will know there are no predators in the tank. Some fish are better at this than others, like halichores wrasses are known to be "jetlagged" when first introduced to our tanks since the ocean they are from is on the other side of the ocean

 

[Slocke]

I feel this has been thoroughly answered but might as well add some fun facts. One reason animals get scared when lights go on and off is due to crepuscular predators. These predators are only active at dawn and dusk and use the half light to their advantage. The long shadows means a predator can sneak up on their prey while still being able to see their quarry.

So next time your cat wakes you at 4am you know why.

 

[bluemon]

It really also doesn't help that you only have plastic decorations for it in a small 7 gallon tank, provide it with more space and rocks and it will also get better as the fish feel more safe

 

[nemo98620]

It really also doesn't help that you only have plastic decorations for it in a small 7 gallon tank, provide it with more space and rocks and it will also get better as the fish feel more safe

I got rocks

 

[bluemon]

I got rocks

Were they live rocks straight from a new tank?

It's just worrying that the tank has been cycled without a rock, and adding it now is not gonna help much for the fish in the tank right now

 

[vetteguy53081]

I was wondering why does my fish hide when I turn off the lights and when I turn them on he stop hiding

I have 11 and everyone of them go into hiding unless they are guarding eggs. In essence, fish do sleep.

 

[nemo98620]

I have 11 and everyone of them go into hiding unless they are guarding eggs. In essence, fish do sleep.

I don't know if they have eggs and it's just one female clownfish and I don't know if they sleep

 

[littlefoxx]

I have 11 and everyone of them go into hiding unless they are guarding eggs. In essence, fish do sleep.

https://www.reef2reef.com/threads/do-you-think-my-clownfish-is-stressed.1001087/#post-11635550
This is your thread about the fish before, this probably has more to do with the hiding than behavior in my opinion and people gave you good advice here, would be best for the fish if you listen because youre asking the same question in a different way to get different answers by leaving out key details about your tank. Not trying to be rude, trying to help but I can only lead a horse to water, I cant make him drink as they say

 

[Court_Appointed_Hypeman]

Everything everyone here said are good points. Fish we usually keep in the hobby are diurnal (because we want our fish to come out when there is light), so they will hide instinctively when it gets dark out, and/or it will signify sudden changes in the environment like a predator shadow, etc.

Fish will still develop a biological clock as they get accustomed to our tank which means they will not be as phased by a sudden darkness, especially since they will know there are no predators in the tank. Some fish are better at this than others, like halichores wrasses are known to be "jetlagged" when first introduced to our tanks since the ocean they are from is on the other side of the ocean

In speaking of biological clocks... I do not know which fish or shrimp is responsible, but they know down to the minute when the auto feeder is going to go off.

The entire tank gathers under it about 30 seconds before it goes off. I set it up in a way to allow for some hydration before floating away, but they don't even wait. Imidiately they eat all of the pellets.

I am very impressed with them figuring that out.