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New double T5 HO and CO2?

This is a discussion on New double T5 HO and CO2? within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Unless you are using CO2, you absolutely only need to run one bulb, even then one might work very well! Even with CO2, you'll ...

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New double T5 HO and CO2?
Old 10-04-2011, 12:15 PM   #11
 
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Unless you are using CO2, you absolutely only need to run one bulb, even then one might work very well! Even with CO2, you'll still be in the "too high" light range using 2 T5HO bulbs unless you use some screening to reduce the intensity.
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Old 10-04-2011, 12:23 PM   #12
 
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I have a thick transparent plastic lid between the light and the water surface, and (if my plants EVER arrive) I will have some gorgeous red floating plants. But I think for now i will only install the one bulb if it works, the guy i'm getting the bulbs from charges a fortune and he doesn't even have one of them i ordered in stock!
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Old 10-04-2011, 03:52 PM   #13
 
I would make sure you are getting good bulb for growing plants. Not just one that says it grows plants.
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Old 10-04-2011, 04:25 PM   #14
 
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yeah there specifically for growing plants :D I've done my research first no worry haha.
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Old 10-08-2011, 11:54 AM   #15
 
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Ok so my entire T5 purchase has backfired, cannot get hold of the bulbs anywhere and the person i was buying them from has ran out of them also. So what im thinking, my light is far too weak that i have still.
Double or single T8 20w? And Co2 or no Co2?
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Old 10-08-2011, 05:00 PM   #16
 
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Quote:
Originally Posted by Limeylemon View Post
Ok so my entire T5 purchase has backfired, cannot get hold of the bulbs anywhere and the person i was buying them from has ran out of them also. So what im thinking, my light is far too weak that i have still.
Double or single T8 20w? And Co2 or no Co2?
First, let's back up and ascertain exactly what you have now. I know it is a 35g tank, but what is the length? And you have a single T8 tube, again what is the length of the tube itself? These two measurements will tell me what you now have, or have the capability to have.

Second point, what sort of plant tank do you want? The majority of aquarium plants will grow fine without added CO2 diffusion. It you want a tank either like the Takashi Amano style, or one like what is known as the Dutch style [mainly plants, fish are very secondary and often not even present], or you want to propagate plants that are high-light, CO2 plus more light will be needed. But if you want a fish tank with good plant growth where the fish are primary and the plants are secondary, you do not need CO2 or higher light.

The issue is always balance; light and nutrients (of which CO2 is merely one) must be balanced at whatever specific level you want for your purpose.

Byron.
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Old 10-09-2011, 02:11 AM   #17
 
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Ok its 30" long, i currently have an 18" 15w T8, The plants i have are 1 amazon sword, 5 red ivy, 5 large ambulia, some bunches of dwarf hairgrass just added trying to make a carpet, 1 bacopa and one cryptocoryne. Flame moss, Java moss, and i have 25 creeping jenny cuts and some riccia coming.

I apologise for the picture quality, taken on my cell phone. But this is basicly what i have now.IMAG0132.jpg
I will be filling out the back and the corners with creeping jenny.
Thought it would be easier just to list everything i had or will be having. If people know about each plant, please feel free to comment on their care also :) I feel like a noob with planted tanks.
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Old 10-09-2011, 09:13 AM   #18
 
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And i forgot to add not all the creeping jenny will be going in this tank, im also using it to give the clawed frogs some live plants.
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Old 10-09-2011, 12:26 PM   #19
 
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An 18-inch T8 tube over a 30-inch tank is cutting it close. I have a 24-inch tube over my 30-inch 29g and it works fine, although stem plants (requiring higher light) would probably struggle or not even last. The colour hue in the photo suggests this is one of the fish or plant type tubes, and they have significantly less intensity than the full spectrum/daylight type which is another detriment [unless the photo hue is the camera and not the actual light].

A single T8 with a 30-inch tube would probably work, and this would mean a glass cover for the tank with a 30-inch fixture. Most hoods for 30-inch tanks have 24-inch fixtures I believe, over here (NA) anyway. Or, a notch up, would be a dual T8 24-inch tubes which would be more likely to satisfy your stem plants and substrate plants which are all higher light requiring. Or a single T5 tube which we previously discussed and I gather is unobtainable in the UK.

There is also the LED fixtures, though so far I have only seen these over smaller tanks, max 20g. On larger tanks there would likely have to be a lot of LEDs to provide adequate light. And they are very expensive, like double the cost for a single fixture, at least over here. As you are in the UK, I believe Practical Fishkeeping is or had a series on planted tank lighting, authored by George Farmer who is very knowledgeable. Might want to track that down. I was browsing through I think the September issue last week and saw this mentioned; don't have the issue myself to check.

Byron.
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Old 10-09-2011, 02:07 PM   #20
 
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I was looking at a double t8 24 inch, very easy to get hold of and my lfs has thousands of bulbs, T5 is such a headache over in the uk. i'm staying away from it for now, until I have the space for the tall tank i want then maybe. Thanks for the advice there. Do you think the stem plants will survive for now? can't upgrade for another 2-3 weeks.
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