How many fish

Discussion in 'General Freshwater Information' started by viper31631, Mar 9, 2008.

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  1. viper31631

    viper31631 Plankton

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    I have a 75 gallon fish tank and I've heard a couple different rule about the maximum number of fish that should be in the tank.

    Is the general rule of thumb 1" of adult size fish per gallon correct?
     
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  3. reef_guru

    reef_guru Humpback Whale

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  4. lunatik_69

    lunatik_69 Giant Squid

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    This is a well debuted topic, but I like the 1" of fish per 2-3gals of water(SW)
     
  5. omard

    omard Gnarly Old Codfish

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    How many fish you can have in a tank has much more to do then with just size.

    "inches" per gallon is a very relative recommendation.

    Just as important are age of tank, compatabilty, need for free swimming room, and how much effort you are willing to take responsibility for maintaining proper water conditions.

    If you are willing to due frequent regular water changes you can handle more fish then if you aren't.

    Add them slowly (over months) and keep your eye on water params, they will let you know you have reached limit.

    Your fish will let you know if they are in a "happy" environment or not.



    :-/
     
    Last edited: Mar 9, 2008
  6. lunatik_69

    lunatik_69 Giant Squid

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    That too, very well put Scott. I forgot about that.
     
  7. superclouds

    superclouds Flamingo Tongue

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    I've also heard 1 fish per 15-20g in a SW. I have a 75g, in it I have 2 clowns, 4 damsels(cause they are hard to catch), 1 large yellow tang and a lawnmower blennie.
     
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  9. ReefPlayground

    ReefPlayground 3reef Sponsor

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    Also consider the species you are planning to keep. A 10g system is an obvious mismatch for a 10" Oscar. :)
     
  10. baugherb

    baugherb Giant Squid

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    I had tons of fish in my old 20 tall. I had 60 gallons of filtration and did routine maintenance. I never had a problem.....