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Thread: About time for a real substrate solution... Reply to Thread
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Topic Review (Newest First)
01-09-2004 01:44 PM
Rex Grigg You need to talk to the shipper about Global Priority Mail. Cheapest way to ship items to many countries. I have seen people quoted $70 for UPS shipping and GPM was $8
01-09-2004 03:10 AM
Bronx19 heh, yeah probably. Since Australia has no at all, anywhere.

Just for kicks I checked how much it would cost to ship a $1.99 bottle of fertilizer from America to my place, it was $98.90.
01-08-2004 11:31 AM
Daemonfly Probably due to shipping costs to Aus. In the US, it's usually $20-$30.

And, Rolo - they still sell it - http://www.bigalsonline.com/search/?...ords1=flourite
01-08-2004 09:35 AM
Bronx19 Holy moly this stuff is freakin expensive. Here in Aus a 7kg bag is $80. The minimal substrate of 3 inches will take 3 bags, costing $240.
01-08-2004 04:54 AM
Daemonfly 2 bags of eco complete gives 2-3" in my 20g long.
01-07-2004 02:29 PM
GulfCoastAquarian 2" in a 10g will probably be just fine. I don't like taking up 1/4 of my tank with just sand, either.
3" is the recommendation for total depth. So you can layer it (1" laterite, 1 1/2" Gravel, 1/2" sand).
The only problem with layering is that the sand will eventually sift its way to the bottom and intermix with the gravel or Flourite so you'll end up with slightly less depth but I still think you'll be just fine with 1 bag of Flourite and 1 1/2" of sand in your 20g.

Bigals is renovating their site, there are a few things I haven't been able to find.
01-06-2004 10:49 PM
Rolo Ok, I'm about to order 2 bags fluorite for my 20 gallon (24x12) which will give me about 3" (using 60 lbs/cu. ft. on the sand bed caculator) and 1 bag of eco-complete for my 10 gallon which yield about 2" - wow, alot of that is water!

Will I be fine with 2" in my 10 gal? 3" seems kind of overkill in a 12 tall inch tank, that a quarter of the height!

Plus when you say 3" minimum, do you mean 3" total substrate or of some real hardcore plant nutritious stuff? I was planning probabely on going for 1 bag fluroite on my 20 gallon, making about 1.5", then toping it off with 1.5" of sand, do you see any problems with this at all?

I just realized that Big Als is isn't selling fluorite! :shock: :x I swear I saw it last night for $10 a bag, am I crazy or what?
01-06-2004 09:50 PM
GulfCoastAquarian Update the thread and let us know if the equations hold true in real life!
01-06-2004 09:49 PM
Rolo I really appreciate your input Sam, this has helped me alot!
01-06-2004 09:35 PM
GulfCoastAquarian Based on this thread...
http://fins.actwin.com/aquatic-plant.../msg00247.html
2 bags of Eco-Complete achieved 2.5" in a 20g tank. Assuming it is a standard 20g, with a base of 24" x 12", that makes for 360 cu in per bag, or 0.2 cu ft.
A bag is 20lbs (note that much of which is water) so

Eco-Complete: 96 lbs/cu ft.

It's really not that dense, but since much of the bag is filled with water, that is the number you'd use.
01-06-2004 09:01 PM
Rolo I guess thats what I was looking for all along, the lbs/cu ft. Does any know the lbs/cu ft. of eco-complete?
01-06-2004 07:55 PM
GulfCoastAquarian Well then that's simply a matter of finding out the density of various types of popular substrates. Jared's site already mentions these two:
Flourite: ~60 lbs/cu ft.
Regular Gravel: ~90 lbs/cu ft.
Silica Sand: ~100 lbs/cu ft.

Then, once you have the density if your chosen substrate, plug it into this calculator to find out how much you need for your tank...
Sand Bed Calculator
01-06-2004 05:22 PM
Rolo
Quote:
Originally Posted by GulfCoastAquarian
Rolo, the reason you're seeing such varying recommendations is because there are so many different types of substrate being used. A light weight substrate like Laterite / Kitty Litter will require less weight to achieve a certain depth. Flourite is a fairly light porous clay, compared to solid quartz gravel of the same granular size so it will require less weight to achieve a certain depth than regular gravel. Sand will obviously require the most weight to achieve depth.
I already know what you just said and thats exactly the problem I have. Look what I wrote - I'm hoping someone could comeup with more precise ways to the know the proper amounts of different brands of substrate. Rex knows what I meant by providing an equation for fluorite.

Quote:
Originally Posted by Rolo737
The most common answer is this very vague "I have X pounds of substrate in my X gallon tank,” or “this many bags for that many gallons."...hoping now that some universal guidelines will come up for different brands of substrates and prove beneificial to more than a handful of people. At least something like the popular 3 WPG, it is a nice starting point for many to get started and somewhat accurate.
It’s just like the 3WPG rule. Like substrate, not all light is created equal - they come in various lumens, pars, color temps, CRIs, sizes and efficiencies...meaning that between two different bulbs of the same watts, not both are equal in benefits to plants. These differences of lights are comparable to substrate size - which is the only substantial difference in this case - making various rule for different substrates a lot easier to come up with.
01-06-2004 01:54 PM
GulfCoastAquarian Rolo, the reason you're seeing such varying recommendations is because there are so many different types of substrate being used. A light weight substrate like Laterite / Kitty Litter will require less weight to achieve a certain depth. Flourite is a fairly light porous clay, compared to solid quartz gravel of the same granular size so it will require less weight to achieve a certain depth than regular gravel. Sand will obviously require the most weight to achieve depth.

As for depth - I shoot for 3" in the front and 4"-5" in the back.
01-06-2004 01:17 PM
Rex Grigg Go to http://www.brainyday.com/jared/aquarium/flourite.htm It will tell you how much Flourite based on tank dimensions and depth of substrate. Note that Eco-Complete is very close to the same volume as Flourite on a bag to bag basis.
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