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## Still into the manual methods?

Here is some information to help with that also...

1 gallon of fresh water weighs 8.33 pounds

1 cubic foot of water = 7.5 gallons = 37.8 litersSurface Area:

1 square centimetre = 0.16 square inches

1 square inch = 6.45 square centimetresVolume:

1 gallon = 3.785 liters

1 liter = 0.264 gallon = 1000 ml = 33.8 fluid ounces = 2.25 lb = 1 kg water

drop = 1/20 ml

ml= 20 drops

teaspoon = 5 ml

tablespoon = 15 ml

fluid ounce = 30 mlAquarium Capacity:

L" x W "x H" /231 = number of gallons

L x W x H (cm) /1,000 = number of litres

No. litres x 0.264 = number of gallonsConcentrations:

Parts per thousand (ppt) = ml/L = 3.8 ml/gal

Part per million (ppm)= mg/L = 3.8 mg/gal = ml/1,000 L

1% solution = 38 gm/gal = 38 ml/gal = 10 ml/LTemperature:

Centigrade or Celsius = (F - 32) x 0.55

Fahrenheit = (C x 1.8) + 32