Is 7 Pound Of Substrate Enough For A 15 Gallon Tank?

  1. R

    Rack Valued Member Member

    I'm going low tech. Was wondering if this is enough. Plants such as:
    Rotala indica
    Hygrophila difformis

    Not sure how accurate is the 1 pound per gallon rule.
  2. maggie thecat

    maggie thecat Well Known Member Member

    It does depend on the design of the tank, one with a small footprint but tall will take less than a long, short tank, but in general 1 to 2 pounds per gallon will give enough depth to anchor plants.
  3. Anders247

    Anders247 Fishlore Legend Member

    It'd work, but it'd be pretty thin. I'd do more than that, personally.
  4. Onewolf

    Onewolf New Member Member

    This is 20 lbs of Carib Sea ECO Complete in a Fluval Flex 15. I don't think 7 lbs would be enough for a planted tank.

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  5. Cheesearmada

    Cheesearmada Valued Member Member

    Make sure it is at least 2-3 inches high.
  6. OP

    Rack Valued Member Member

    And if I supplement it with gravel to make up for those extra 8 pounds should work?