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This is a discussion on api co2 booster within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Originally Posted by arscott82 All I have to say is wow. I really wish I would've read that before I did anything with my ...

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Old 01-30-2012, 11:45 AM   #11
 
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All I have to say is wow. I really wish I would've read that before I did anything with my tank. Thanks for that, it was very informative and I know now that I have way to big of a hob filter for my planted tank. Plus I was using purigen, just took it out last night after I finished reading the four part. And about lighting? I have a flora sun max grow light, ok, now is that "to much" since I have a oversized hob filter? I have it on for about 9 1/2 hours a day. I now know that I have to much flow to let my plants absorb enough co2. Thanks for all your help

Adam
Thanks Adam. In order for me to respond to your light question, I need to know the tank size (gallons and length particularly) and the length of the fluorescent tube (so I kow how much of the length it covers). I'm assuming one tube; and also assuming this is the Hagen Flora-Gro tube?

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Old 01-31-2012, 05:25 PM   #12
 
Byron,
Sorry took me so long to get back to you. Been busy with a prego wife and a 20 month old. Ok, I have a 29 gal tank. Heigh - 18 3/4, Depth - 12 1/4, Width - 30, all in inches. The length of the light is 24in. The grow light I have is called Flora Sun Max growth light. I also have another light, but that is soon to be just a cool blue light just to have a little extra brightness without the rays the plants need to grow. And for my filter I have a hob, but when I first started I was told to get an over sized one. So I ended up getting one that is for a 55 gal, it holds two rite size c filters. One on each side of the filter. Thanks for all your help again.

Adam
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Old 01-31-2012, 06:55 PM   #13
 
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Originally Posted by arscott82 View Post
Byron,
Sorry took me so long to get back to you. Been busy with a prego wife and a 20 month old. Ok, I have a 29 gal tank. Heigh - 18 3/4, Depth - 12 1/4, Width - 30, all in inches. The length of the light is 24in. The grow light I have is called Flora Sun Max growth light. I also have another light, but that is soon to be just a cool blue light just to have a little extra brightness without the rays the plants need to grow. And for my filter I have a hob, but when I first started I was told to get an over sized one. So I ended up getting one that is for a 55 gal, it holds two rite size c filters. One on each side of the filter. Thanks for all your help again.

Adam
That helps. I have the same tank with the same length tube over it. That will be low to moderate light, depending upon the tube.

You have the ZooMed Flora Sun tube, which has a kelvin of 5000K so the light is warm. I have not tried this tube myself, but i would suspect from what I can find out that it is less intense light than their Ultra Sun 6700K tube, which I do know to be good. There is also the ZooMed Tropic Sun which is also 5000K but (probably) brighter, so if you like the "warm" hue I would get this. But aside from that, I would recommend the Ultra Sun. It will appear much brighter, partly because it is, but partly because the spectrum is more toward the "cool" side so the light is a crisper white.

You mention another light, so do you have two tubes over this tank together? That opens up another possibility I can go into.

One thing I do not recommend, is having different light at different times. The plants will use any light they can, with varying degrees of usefulness, but algae is not so particular.

Assume you buy these tubes in a local fish store; they will be more expensive than something else you can use from the hardware store, a Daylight 6500K tube by GE, Phillips or Sylvania. I don't know if these come in the 24-inch length, I believe they do. They will be a couple dollars. And whichever you decide on, they must be replaced every year or so. They lose intensity as they burn.
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Old 01-31-2012, 07:55 PM   #14
 
Yes i have two fixtures on my tank with an all glass hinged top. And correct on the light, I just looked it up. It's 5000k high intensity. So since your the expert here what two bulbs would be the best for my plants? Do the plants care what side of the spectrum it's on or do they need it all? If I remember right you said in your lighting part of the 4 part that they needed a little of it all.
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Old 01-31-2012, 07:57 PM   #15
 
Oh and both lights are on the same timer. I was kinda thinking about making the second light kind of like the moon light, being fairly dim, and having it stay on for like an hour longer. Just because I have my timer set to go off around 9pm and when it goes off the tank goes from light to complete darkness.
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Old 01-31-2012, 08:30 PM   #16
 
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With two tubes, you have more options. Plants need red and blue light to photosynthesize, but there is evidence they also use green but much less. This is why the so-called "aquarium" or "plant" tubes give that purplish hue, they are primarily red and blue. Ironically, all of them that I have so far used are alos half the intensity of the "daylight" or full spectrum tubes of the same size. I avoid these.

The best tubes have high peaks in the red, blue and green. The green balances for a colour hue that is comparable to the sun which means true rendition of fish and plant colour. A good full spectrum or daylight tube with a kelvin around 5000K-7000K usually achieves this; I prefer the Life-Glo, ZooMed Ultra Sun, or the daylight tubes mentinoed previously, all having a kelvin around 6500K.

As a second tube, you can warm or cool this, at your discretion. A lower K will be more red so warmer hue, a higher K is more blue so cooler. I personally prefer the blue added to the other. I'm not sure either wil make much difference to the plants, as they can use both red and blue so one is merely heightening whichever. As long as the one tube is the mix, this should work.

The species of plants might help decide this. Red leaf plants need more red, or more intense light in the red and green. More blue does not seem to help these plants, plus in the blue light they do look a bit off-colour, which should not be a surprise. The leaf is red to us because it is reflecting more red light, so it needs red light to be red.

Graded light is good, I do this via room lights. My tanks are all in a fish room, so when the lights come on there is daylight, and when they go off in winter there is a room light on (also timed). The effect of these moon night lights is debatable, some say they can promote algae, I don't know. I don't happen to like them.

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