The Planted Tank Forum - View Single Post - how much substarte??? wanting to order!!
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Old 01-08-2013, 05:06 PM   #3
Leeroyv
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Quote:
Originally Posted by Airstreamin View Post
The "general" rule of thumb is 1 lb of substrate for 1" depth for every gallon.

For example:
1" substrate in 20 gallon tank = 20 lbs of substrate
2" substrate in 20 gallon tank = 40 lbs of substrate
etc.

so 19l = 5 US Gallons (roughly) which means you would need 5 lbs of substrate to get a 1" base or 2.26 kg. So your 2kg bag should give you the right amount for a 1" layer.
thanks pal
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