Posted: 2011.07.03(Sun)21:49 Post subject: LED help!
I have a 20 gallon tall tank with 5 glowlight's, 5 glofish, and 2 Emerald Corydoras in it.
For plants, I have Hornwort, Javamoss, moneywort, and one struggling from Petsmart Javafern. They have all been "planted" as of a day and a half. Except the Java moss. It is currently at about 1 hour as of this post.
I attached the Javafern and hornwort to a piece of driftwood that is currently browning my water which I don't like but can handle since it looks fine lit up.
As for your plants, I have some Moneywort myself. It seems hardy under my T5 lighting. I use a full spectrum light by Aqueon, but GE also sells a way cheaper bulb that is comparable. I also purchased a tube from Petco, which is a Peacock Fern. Turns out loads of plants in the tubes are semi aquatic plants, which may or may not do well. I'd give it time to see. For a hyper fast growing plant in my fresh water aquarium, I found Fox Tail (Myrio Filgree) It literally grows 1" a day for me. In a month, I will have 4 new plant stalks of it.
A really nice plant, that I find when combined with Amazon Sword, that fry absolutely love to hide in. Another decent growing and hardy species seems to be PennyWort. If it breaks, it will continue growing while floating at top of tank. Good for fish to hang out at, to hide from bright lights. I thought about trying Javafern, but don't have any experience with it. Also, if you use Myrio, keep in mind while disposing of clippings that most states consider it invasive species.
10 Hours a day for lighting will probably help. Though, your LED's might not be producing the right spectrum for your plants.
Well right away some of what these articles are saying, it sounds like the red spectrum is most important for planted tanks. The box showed heavier in blue with only light to moderate yellow and red spectrum.
I ended up taking the Marineland unit back in favor of T5 lights. Hopefully the plants will hang in there for another weekish until I get paid =(.
The main things to remember when deciding which lighting to use are that the lighting needs to be of the right color spectrum for plant growth. A really bright light may not be beneficial to the plants if there is not enough light from the red spectrum reaching them. I would always use tubes that have a kelvin rating below 10,000K, marine tubes will be sold at 20,000K for the blue spectrum.
This leads me to believe that for my goals, the red spectrum is my friend=).
What specs Marineland gives are on the website for the LED.
.06 watt White LEDS -51 total watts
.06 watt Blue LEDs - 3 total watts
Lumens - 300
As for the spectrum, well its a visual graph. No actual Kelvin rating on it at all that I saw.
Ha... in googling info for the spectrum....I came accross this Marineland staff response....
does this light promote live plant growth Interested in buying one but do not want to kill my plants
I have large brazillian swords in my tank have had them for years now don't want to kill them
Aquarium Type: Freshwater
Aquarium Size: Mid-Size (20-60g)
You should reference our charts for the appropriate PAR/LUX values on our website. I wouldn't recommend the Single Bright LED for plants, really should be the Reef Capable version. The Double Bright LED's can be used for some plants with lower light requirements.
Sigh......don't let a pet store sell you on something.....=(
Anyway thanks for the feedback! and the link. If it werent almost 1 am Id dig in to all of the links....another time =)
If you have some time, let me know what you think about what I would have blown more money on....good investment?
Looks decent. One of the most important things to consider with the florescent is the spectrum of lighting. GE sells tubes that fit these units and is designed for aquariums. It costs less than Aqueon or other pet store brands. I think you have a good handle now on your plants needs. Red spectrum is highly important. Light tubes labeled Plants or For Aquarium Plants.
Something you could try in meantime, till you buy a replacement unit, is relocate your aquarium temporary near a window that receives lots of natural light. If it's a feasible option for you. Aquariums can be a pain to move...
I do have lighting on it, but its only 20 watts with a spectrum that might be useless due to age.
I guess what I don't understand is how the more experienced aquatic plant owners know what is a good buy and what isnt. Is it based on brand, what you read about the specs. How is a decent light unit being decided? What factors are coming in to play I guess?
also, is this info for the lightbulbs enough to tell you what it produces in terms of blue/red etc?
2x 24W T5 HO lamps 10000K A quick googles sounds to me like they are blue spectrum
2x 24W T5 HO lamps Actinic Blue This is...well blue...?
If I am right, if I ordered this I would have light bulbs heavy on blue correct? I assume normally you can tell what spectrum because you have the bulb in packaging in front of you. In this case since we don't, Is there any other way then what I did to know for sure?
From what I've gathered about 10000k (kelvin bulbs) is that it will be a bright white light. I don't even know the k rating on mine, but from the color and brightness, I'd guess around 10000k as well. They usually include such a bulb to normalize the light, when using red or blue light tinted bulbs in a tank.
As for the tinted color bulbs, that's just a bulb that will intensify those colors in your tank. Blue will accent blue fish, red will accent red fish. For our viewing pleasure only (warm and cool hues--same concept as when you adjust images on computer).
As for what you get with your new hood light: that's kinda a mystery until you actually get the product. The good news is you can get a good and cheap GE bulb that will fit the hood for aquariums and plants from the hardware store or hardware department of local Walmart if the bulb that comes is inadequate for use. $3-5 per bulb is average price I've been seeing.
When deciding on a bulb, important factor is what you see on package. Key phrases like Full spectrum and Plants.
I am by no means an expert on this subject. I just seem to have a really green thumb with plants. My intuition on the subject. It's kinda weird to me on how I just kinda have this sense about plants.
On the branding issue, I never trust any brand. That's just marketing schemes. I look for feedback, warranty terms, and specs.
I would say the 10000k white light would be OK, especially if it states full spectrum and/or Plants on it.
OK, just blinded myself out of laziness, LOL. I have the 15W 8000k full spectrum light by Aqueon.
The only plant in this set up struggling, seems to be the Water Wisteria. That is probably because of my wattage. Apparently that plant eats tons of iron, and needs 2-3 watts per gallon and over 10000k. My straggler may also be suffering from Iron deficiency, so I'm off to the Local Pet Shop for a free test.
My other plants seem to be thriving, especially the Myrio Filgree. Those plants have almost topped my tank.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum