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Love my new plants.... hate the algae

This is a discussion on Love my new plants.... hate the algae within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Originally Posted by shadetreeme I know I am being difficult and I realy appreciate your help, and pacience. I did not see any algae ...

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Love my new plants.... hate the algae
Old 11-23-2010, 11:04 AM   #11
 
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Quote:
Originally Posted by shadetreeme View Post
I know I am being difficult and I realy appreciate your help, and pacience. I did not see any algae in the first month and a half that I had the tank, but as soon as I started with the plants and fert.... boom.
Here is a link to some info on my bulbs
Petsr4u - All-Glass 18in Flourescent Bulb 15 watt, Aquarium Bulbs

Again.... thanks for the help
Algae is a plant, and all plants need light and nutrients. Higher plants are more exacting in their light requirements--red and blue are essential for photosynthesis. Algae can manage under any light. So, once you added nutrients (fertilizer), the plants were prevented from making full use of the nutrients because the light was not adequate to balance. Algae grabbed the nutrients and in the presence of excess light (to the algae) took off. Light is the single most important aspect of planted tanks, and every planted tank aquarist will agree with that. Without suitable light, the plants simply will not cope beyond maybe struggling (some will outright melt away) and algae will increase more and more.

To the lights, that is what I thought they were. I bought new All Glass fixtures for two tanks last year to replace very old ones, and they came with these tubes. They went straight in the bin to recycling. I don't understand how you think they are "brighter" unless as redchigh says it is the "colour" aspect. These tubes are not sufficient for good plant growth, and here's why: below is the spectrum graph for these tubes which I got from Fosters&Smith once I knew the actual tube. You will note a high green/yellow component: while plants can "survive" and even grow a bit under this light, they cannot make full use of it because it is too lacking in the essential red and blue by comparison. Algae however will use any and all light and with all those nutrients you are adding, it will have a field day.
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Old 11-23-2010, 11:35 AM   #12
 
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In comparison, this is the spectrum that plants are the best at using.
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Old 11-23-2010, 11:46 AM   #13
 
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Yes, and here's why: this graph shows the absorbtion of light by chlorophylls used in photosynthesis, and you will note the high levels in the blue and red colours, and scarcely any in the green/yellow.
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Old 11-24-2010, 04:53 PM   #14
 
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YOU GUYS ARE AMAZING!!!!!
I have been on many Forums for lots of different hobbies and interest , and have never found a group as knowledgable and helpful as this.
It does make a huge difference to have something explaned rather than just having somone say "you have the wrong bulbs idiot" . I will, for the sake of my plants, go back to the 6500K.
Would it be OK to add an LED strip to get the extra light I like??

Thanks again
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Old 11-24-2010, 06:43 PM   #15
 
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Quote:
Originally Posted by shadetreeme View Post
YOU GUYS ARE AMAZING!!!!!
I have been on many Forums for lots of different hobbies and interest , and have never found a group as knowledgable and helpful as this.
It does make a huge difference to have something explaned rather than just having somone say "you have the wrong bulbs idiot" . I will, for the sake of my plants, go back to the 6500K.
Would it be OK to add an LED strip to get the extra light I like??

Thanks again
im on a bodybuilding forum and if you ask a silly question, you get cursed out and harrassed XD you will find that on this forum, everyone (that ive seen :D ) is very nice and more than willing to help :D
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Old 11-24-2010, 07:48 PM   #16
 
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Quote:
Originally Posted by shadetreeme View Post
YOU GUYS ARE AMAZING!!!!!
I have been on many Forums for lots of different hobbies and interest , and have never found a group as knowledgable and helpful as this.
It does make a huge difference to have something explaned rather than just having somone say "you have the wrong bulbs idiot" . I will, for the sake of my plants, go back to the 6500K.
Would it be OK to add an LED strip to get the extra light I like??

Thanks again
I don't want to be telling you or anyone to use this or that; it is your tank and it should be what you want. But having said that, there are the plants--and fish--to consider when choosing light. And IO feel obligated to provide advice when I can toward the best conditions for the health of both plants and fish.

LED has not yet shown itself overly useful with planted tanks, according to what I have read. However, advancements continue to be made in this as in other aspects of the hobby. But for the present I know of no better light than full spectrum/cool blue combo in fluorescent tubes or compact fluorescent bulbs, with a kelvin around 6500K. Diana Walstad in her book Ecology of the Planted Aquarium cites scientific studies that proved plant growth was better under this light.

The danger with adding more blue or whatever is that plants can't use it, and algae will; initially you had an algae issue, and the light is a major part of the reason. So it may be difficult to control. And speaking from experience, I would not do anything that is likely to cause algae to increase. It can be very difficult to stop it safely.

As for the fish, forest fish do not like bright light. They live in shaded waters among branches, floating and/or overhanging vegetation, and over a dark substrate [with very few exceptions]. Light has to be monitored so that it is not excessive for the fish as well as the plants.

Byron.
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