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Author Topic: Stocking myth?  (Read 10757 times)
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Shine Like A Star <3 ...or a scale, either one.

« on: January 05, 2013, 11:31:06 PM »

Is the one inch of fish per gallon of water myth acceptable to use? I have a 47 gallon tank with 9 tetras, and was wondering if when stocking the rest of my tank I can use this rule?

47 Gallon:
6 Black Skirt Tetra
2 Baby Angelfish
2 Algae Eaters
3 Mystery Snails
2 Dalmation Mollies

10 Gallon:
3 Swortail (1m;2f)
5 Swortail Fry

2.5 Gallon:
2 Male Betta
3 ADFs

2800 Gallon Pond:
4 Koi
60+ Goldfish

Dogs: Lexi, Angel & Scout <3

><((((> Ashley Lynn <))))><
Pat Mary
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« Reply #1 on: January 06, 2013, 12:30:41 AM »

That rule is a myth.  A tank should be stocked according to the needs of your fish.  Strong swimmers need a long tank, tall fish (angels) need a tall tank, etc.  A 10 inch fish cannot live in a 10 gallon aquarium.

When in doubt, do a water change.
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Tanks: 90 gallon,2x75 gallon,55 gallon, 2x50 gallon; and shall we say a few more.. always growing always changing.
Posts: 5,392

« Reply #2 on: January 06, 2013, 12:34:54 AM »

Here is a good thread to read regarding the once inch per gallon myth.

It took 7 days for God to create this world...
So how long will it take for me to create the perfect tank???
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« Reply #3 on: January 06, 2013, 12:46:12 AM »

And your 47 gallon tank doesn't really hold 47 gallons of water.  A standard American 55G only holds about 40 gallons empty, so without knowing the internal dimensions of the tank, I'd say you're probably only dealing with about, maybe a 37 gallon tank without any substrate.  It's maybe a 32 gallon w/ one inch of substrate or possibly a 30 gallon or less with two inches of substrate, at best (excluding any other ornamentation.)

You might want to consider waiting a while until your tank is back up to health before adding any tankmates.

Administrator Comment A standard 55 gal aquarium will hold a bit over 51 gallons of water when empty. That is assuming it is not completely filled to the brim.
« Last Edit: May 30, 2014, 01:54:59 PM by russ » Logged
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Tanks: 85+ of all shapes and sizes!
Posts: 356

Fish Breeder

« Reply #4 on: January 06, 2013, 05:01:40 AM »

Is the one inch of fish per gallon of water myth acceptable to use?

Hi Ashley, welcome to the forum!

For lack of a better rule, it is just a general guideline to help keep new hobbyists from getting into trouble.  As you gain experience, you'll get a feel for a stocking level that works for you.  Lower stocking levels give you more room for beginner mistakes and require less tank maintenance than hi stocking levels.

Best of luck with your new aquarium!  You've come to a very good site to help get you off to a great start.


When i read things that say that wont work....
I mostly smile and think , yeah right 
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