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Calculate gallons of a tank

A HEXAGONAL AQUARIUM. EACH OF THE SIX SIDES IS 16 INCHES BY 23 INCHES. HOW MANY GALLONS OF WATER WILL THIS FISH TANK HOLD?

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I assume the length of a side is 16 in, and the height of the prism is 23 inches.
Volume of a prism is V_prism=(Area of base)*(height of prism)
Area of base is made up of the area of the 6 equilateral triangles with sides =16 inches. The height of such triangles is given by 8*SQRT(3).
Use the Pythagorean theorem or the trigonometric ratios to find the height of each of the 6 traingles.
Area of base =6*16*(8*SQRT(3))/2 sq in
Volume =6*8*8*23*SQRT(3) cubic inches
Calculate the value in cubic inches and convert to gallons: I leave that task to you.

Posted on May 12, 2014

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Posted on Jan 02, 2017

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How much water goes in an 36x 25 fish tank how many gallons


volume requires 3 measurements:
height, width and depth (from front to back)

Once you have the 3 dimensions you can multiply them together to get the volume in whatever unit you measure in, Centimeters/Inches/feet etc.

once you have your volume you can google a conversion table to figure out your unit to gallons/litres/ etc.

http://metricunitconversion.globefeed.com/Metric_Conversion_Table.asp

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The coolant in mill should be mixed ratio 32 parts water and 1 part coolant.it has 99 gal and is 40% full.existing mixture has 23 pts water and 1 pt coolant.i have to get it back to 32 to 1


Add 38 gallons of water to the current mixture assuming you have a 250 gallon tank. This will bring your current ration back to 32 to 1

99 gallons / 23 = 4.3
4.3(32-23)=38.7

99 gallons + 38 gallons = 137 gallons.
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How can I properly determine the amount of watts per gallon of lighting I need for my aquarium?


How many watts you need depends on the type of plants and the volume of the tank. Here is an excerpt from an article that will help you determine proper wattage.
Instructions


Identify the species of plants you have in your tank or that you plan to put in your tank and how much light that species needs. Each species of plant will have an optimal lighting requirements, from low light to bright light. To determine the plant species, compare photos on the Aquarium Plants Photos and Profiles page of the Aqua Hobby website, or take samples of the aquatic plants to your local aquarium store for identification.


Write down how much lighting each of the plant species in your tank needs. Give each plant a rating of low, medium or bright. The books "The Complete Fishkeeper" and "Freshwater Aquariums for Dummies," as well as your local fish store, are good sources of information for this.


Review your list and determine what type of plant dominates your tank. For example, if you have mostly plants that need bright light, then use a bright-light formula. If you have an equal mix of plant lighting needs, then use a medium-light formula.


Calculate a range of watts of lighting you need for your tank with one of the following formulas, depending on the amount of light you determined you needed for your plants. For low light, multiply one and two by the number of gallons. For medium light, multiply two and three by the number of gallons. For bright light, calculate three and five by the number of gallons. For example, for a 20-gallon tank with plants that need medium light, you would get a range of 40 to 60 watts (2 x 20 = 40 and 3 x 20 = 60).


Read more: How to Determine Watts Per Gallon for Aquarium Lighting ' eHow.com http://www.ehow.com/how_8014286_determine-per-gallon-aquarium-lighting.html#ixzz23KB8HErA

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Hi i need to know how many gallons a 4ft by 2ft by 2ft tank holds thanks


Hi Kelma,

First determine the area to be filled

4 x 2 x 2 = 16 cubic ft

You need to determine how many cubic feet a gallon displaces.

Find out how many gallons the tank will hold by dividing:

Area to be filled / Displacement per gallon = Total capicity of tank in gallons

Best regards
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