LED Lighting suggestions.
- Thread starter Ctiger3158
- Start date
- Tagged users None
you don't have to use it
Dalmatia
Valuable Member
When the tank light suddenly turns on in a dark room, fish will dive to the substrate, dash about frantically often hitting the glass sides of the aquarium, or even jump out of the water. The same reactions occur when the tank lights are suddenly turned out. Aside from any possible physical injury the fish may sustain, these sudden changes in the light cause significant stress to the fish. Bright camera flashes can also be stressful in the same way. So also would any unnatural effect such as strobe lighting.
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Dalmatia
Valuable Member
Thom Demas, curator of fishes at the Tennessee Aquarium, defines stress as anything that threatens to disrupt an organism’s normal physical, mental and/or emotional state. The organism must then expend energy dealing with the stressor, which leaves it with less energy to deal with other things, such as pathogens. “If the fish are busy running from or hiding from that weird phenomenon of ‘instant lights on or off,’ they may be wasting energy to this stressor and eventually get sick from something that is most likely ubiquitous and that they would have tolerated had the stressing event not been there,†says Demas. There is now ample scientific evidence that in fish as in humans, stress at any level has a very negative impact on the immune system because it disrupts the physiological equilibrium of the fish.
The solution with tank lights is obvious: the room should always be reasonably well lit when the tank light comes on and when it goes off. As Marc Kind, curator of fishes and invertebrates at the Adventure Aquarium in Camden, New Jersey, says, “this is just good, sound husbandry.†Given the evidence mentioned previously of the time it takes for fish to adjust, the room should be lit for at least an hour before and after the tank light is turned on or off respectively. From my own experience this all but eliminates any frantic reactions from the fish. They will uniformly and quickly swim toward the room light source (be it light coming in the window or from a lamp) when the tank light goes off, but without frantic crashes and jumping into the tank cover glass which will otherwise occur.
The solution with tank lights is obvious: the room should always be reasonably well lit when the tank light comes on and when it goes off. As Marc Kind, curator of fishes and invertebrates at the Adventure Aquarium in Camden, New Jersey, says, “this is just good, sound husbandry.†Given the evidence mentioned previously of the time it takes for fish to adjust, the room should be lit for at least an hour before and after the tank light is turned on or off respectively. From my own experience this all but eliminates any frantic reactions from the fish. They will uniformly and quickly swim toward the room light source (be it light coming in the window or from a lamp) when the tank light goes off, but without frantic crashes and jumping into the tank cover glass which will otherwise occur.
kschweer
Moderator
Sorry I read your post wrong. I agree that lightning is stressful to fish and is in no way necessary. I thought you were implying that the hydra itself was stressful to fish. Sorry for the confusion.
EllisJuan
Active Member
Wow, that looks like exactly what I want. Do you have any experience with this light?
falconut
Active Member
I'm happy with my Ocean Revive Arctic S026 fixtures. The corals and clams seem to be doing great and the price was great for LEDs. They are dimmable, not controlable full spectrum that run very cool. I didn't have the cash for the higher priced LEDs and these guys helped me get into LED.
reefs-RSW
New Member
I have an 85 Watt intellisun led light. It is over my 30 gallon cube. I have to say that it is great. I have no other LED experience, so these so far have treated me great with good color and growth. so complaints here about this light!! Too bad it is not widely used by users. I believe it is some the same level as the photons?
