Best aquarium LED light for fish tank – reviews & choosing guide
The Euphotica LED aquarium light is designed for marine fish tanks and reef aquariums containing corals.
The Lightimetunnel 165W Aquarium LED Light is suitable for freshwater, saltwater fish, and coral tanks. The light features 45mil Bridgelux white LEDs and 45mil Epistar blue LEDs. The white light makes the water look clear, and the tank looks photosynthesis. The red light enhances the color in the tank and the growth of fish. The blue light contributes to the water clarity and an ocean-like look.
Here is a summary of lighting requirements for different aquarium types. I recommend timers for any aquarium to provide good daylight/night cycles, however this is even more important with Planted Freshwater and Saltwater Reef or Nano Reef tanks. Turn the actinic lights on about one to 1/2 hour ahead of the daylight bulbs and one to 1/2 hour later in the evening. I generally have the brightest lights on for about 12 hours per day, with 1 or maybe 2 hours of less bright or "ramping" up or down of LEDs if used. Sometimes with MH I will have them in a third cycle that is on for only abut 10 hours or less.
Despite commentary in some aquarium keeping forums, there is NO evidence that ramping up and down much longer than 1 hour where strong lighting is used provides ANY benefit to plant growth, fish, or reef environments (this is not applicable where one low to moderate lighting is used and one on/off cycle is all that is needed). I have personally kept many aquariums (100s) going back to where only timers were all we had and used single time one for strong lighting, partial tank on with full lighting an hour later, and multiple timers. While have partial lights on for an hour did produce results over a strong on/off, multiple cycles made NO difference! Think of it this way; in tropical regions, there is little difference in bending of light rays from the sun much past an hour after sunrise or an hour before sunset, so thinking a ramp up/down cycle much more than this time will make a difference has no practical or scientific evidence to back this up.
For LED moonlight settings, generally just a 1-5% of your full lighting power setting is sufficient between main lighting cycles. If you have separate moonlights, I would run these 8-16 hours (I have yet to find in benefit from this that can be scientifically proven other than aesthetics).
ANY fluorescent light used for aquarium applications such as planted aquariums or reef, slowly burns up phosphors and other rare earth elements that produce the light energy necessary for PUR. As with a UVC bulb/lamp used for a UV Sterilizer, these lights go through a "half life", meaning that a light that is run 12 hours per day that may last 2 years (as per rated life) should be actually replaced every year otherwise these lamps are running at 50% and less of initial light energy production and then often producing much more yellow light and even an imbalance of red that is inducing to more algae and cyanobacteria growth in particular.
The picture to above/left clearly demonstrates the difference we can see with just our human eye between new 6400K Daylight SHO and one nearly two years old. The color temperature of the old lamp/light.
Underwater Aquarium Lights For Fish Attracting of LED Fish Tank
Aquarium LED Lighting: LED Lights for Reef Aquariums
I noticed you said something along the lines of "If you can afford it, invest in a timer." Fortunately timers have become very cheap nowadays. I don't believe in the digital timers because they are expensive and do the same job as a dialed timer. I went on vacation in December of 2008, and I went out to look for a timer. The fish hobbyists stores would sell them for $15 or more! I did a little bit more research and the exact same timers are $5 at your local Wal-Mart. I now leave the timer on because I'm not home in time to shed enough light in the tank. My ideal time is to keep it on for 7 hours (3-10 PM).Hi I am about to go away on a 5 week vacation, my neighbour will feed the fish every other day do a water change each week and I’ve set up a timer for the LED lights to come on each day. I have noticed that the Blue light comes on each timed segment instead of the White one, no matter what i do its always the Blue which comes on using the timer. Will only using Blue cause any problems ( its a 19 gall planted tropical tank)