Togliat
Aquarium Advice Activist
- Joined
- Sep 11, 2011
- Messages
- 145
I was checking my CO2 and air-stone timers early this morning.
Rather than turn on the lights, I decided to try using a flashlight with a red lens (the type you might uses in the field for covertly reading maps or hunting deer, who don't see red...
The fish seemed completely oblivious and failed to react at all.
Do you guys know if fish can see red light? Might this be a way to observe your tank at night without stressing the fish?
(I also have blue LEDs on a timer but they eventually go off, allowing for increased darkness for a few hours).
I am pretty sure that if I flipped on the room lights or used a flashlight with a regular lens, the fish would react...
Just wondering, thanks.
Rather than turn on the lights, I decided to try using a flashlight with a red lens (the type you might uses in the field for covertly reading maps or hunting deer, who don't see red...
The fish seemed completely oblivious and failed to react at all.
Do you guys know if fish can see red light? Might this be a way to observe your tank at night without stressing the fish?
(I also have blue LEDs on a timer but they eventually go off, allowing for increased darkness for a few hours).
I am pretty sure that if I flipped on the room lights or used a flashlight with a regular lens, the fish would react...
Just wondering, thanks.