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post #1 of 15 (permalink) Old 04-05-2004, 09:32 PM Thread Starter
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Why do people spend big bucks on expensive substrate and fill their aquarium just with it? The plants roots reach for the bottom layer of substrate. Why not put a layer of expensive substrate on the bottom 1/3 and layer the top 2/3 with fine gravel (but slightly larger dia. than the bottom substrate)? Just a thought.
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post #2 of 15 (permalink) Old 04-05-2004, 09:45 PM
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1.) If you like to plant and replant often your carefull layers of substrate become mixed.

2.) Not all plants root at the same level

I've done both methods, however I much prefer having a uniform substrate now.. Its just much easier to manage.


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post #3 of 15 (permalink) Old 04-05-2004, 10:00 PM
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Tap roots hit the bottom.....feeder roots come in all lengths.
Having a good substrate is as important as lighting whether you are talking house plants, garden, flower beds or planted tanks...

Now I ask you... if you are going to grow plants... dont you think that they would appreciate the efforts and a few extra bucks and show you what they can do ? :lol:

I would rather do a small tank right then a large tank "wrong"
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post #4 of 15 (permalink) Old 04-05-2004, 11:16 PM Thread Starter
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Quote:
Originally Posted by Buck
I would rather do a small tank right then a large tank "wrong"
Thats exactly what I need to hear, thanks. The only reason I ask, is that eco complete is $40 for a 20 pound bag were I live.
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post #5 of 15 (permalink) Old 04-06-2004, 12:34 PM
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Quote:
Originally Posted by Buck
I would rather do a small tank right then a large tank "wrong"
Hear, Hear..

I am dropping my plant killer 75g and doing a 29g instead...
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post #6 of 15 (permalink) Old 04-06-2004, 02:16 PM
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Awww...can't get plants to thrive in your 75gallon?
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post #7 of 15 (permalink) Old 04-06-2004, 03:43 PM
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Quote:
Originally Posted by Dean
Why do people spend big bucks on expensive substrate and fill their aquarium just with it?
That's a big question in my mind too, but everyone else questions what I do so it evens out.

Sean

Aquascape? I'm a crypt farmer.

It's a fine line between fishing and standing on the shore looking like an idiot.

That IS an aquascape, it's titled "The Vacant Lot".
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post #8 of 15 (permalink) Old 04-06-2004, 03:48 PM
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This is a topic that always amuses me.

You see, in my area, aquarium gravel is about $50 for a 50lb bag. It doesnt cost that much more to use Flourite over gravel.

However.. when I can buy a 50lb of White Silica Sand for $9...


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post #9 of 15 (permalink) Old 04-06-2004, 06:54 PM Thread Starter
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Where I live it would cost me $97 without gst to get 50 pounds of flourite. So it's only twice as expensive as normal gravel. Not that expensive if you pt into perspective.
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post #10 of 15 (permalink) Old 04-06-2004, 08:50 PM
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Don't believe the hype sand is a great substrate.
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post #11 of 15 (permalink) Old 04-06-2004, 09:30 PM Thread Starter
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but I thought sand has no nutrients?
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post #12 of 15 (permalink) Old 04-06-2004, 09:41 PM
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Aquarium Gravel doesnt either...

Most substrates don't contain nutrients directly (with the exception being stuff like Eco complete and flourite). What matters in all other plant substrates is the CEC rating, or the ability of waterbourne nutrients to bind to the substrate material itself. Clays are very good at this, so are lightweight planting products like vermiculite, etc. Sand is not great at it, but it can hold its own with root fertilizer supplements.


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post #13 of 15 (permalink) Old 04-08-2004, 01:27 AM
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Plus the mulm from the dead plants and waste have a high CEC.
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post #14 of 15 (permalink) Old 04-08-2004, 01:30 AM
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Plus the mulm from the dead plants and waste have a high CEC.
Really!? cool. Do you have any literature or sites I could browse that provide more info on this?
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post #15 of 15 (permalink) Old 05-01-2004, 01:28 AM
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gareth-- can one use vermicculite in an aquarium?
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