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03-09-2008, 05:09 PM
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#1 (permalink)
| | Plankton
Join Date: Mar 2008
Posts: 14
Karma: 2
 |  How many fish
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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03-09-2008, 05:29 PM
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#2 (permalink)
| | Vlamingii Tang
Join Date: Apr 2007 Location: joliet,il Age: 41
Posts: 1,895
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just one little sps frag tank with lots of goodies | |
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03-09-2008, 05:43 PM
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#3 (permalink)
| | Giant Squid
Join Date: Jul 2007 Location: Miami, FL Age: 39
Posts: 4,550
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Quote:
Originally Posted by viper31631  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? | This is a well debuted topic, but I like the 1" of fish per 2-3gals of water(SW) _________ 9YR OLD 90G/55g custom sump/refug Mag18 Aquac 180skimmer 692w MH AC jr,yel&kole tang,midas&convict blenny,B&G chromies,Blk/yel fin chromie blackcap,nemo,neon goby,6line; Blastomussa Merleti,Acan ,BUBBLE,Torch,LTA, Acropora(2) Moon, assort zoas, yel& G star polyps, P&B ricordia, montiporas, cup&candy corals, xenias,B/G mush,flower ane(2), cherry red mussa, dusters,cleaning crew..  | |
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03-09-2008, 06:54 PM
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#4 (permalink)
| | Gnarly Old Codfish
Join Date: Sep 2003 Location: Silverdale, Washington Age: 59
Posts: 4,788
 
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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.  _________ AG "125," AquaC EV 180, 30 gal sump, "SCWD", 80 lbs LR, CoralSeaLife "Moonlite" Hood, PFO 250W HQI Mini-Pendant (SPS HQI 14000k bulb)
12 Gallon NanoCube - 24w stock PC 50/50 light "...nothing good ever happens fast in a reef tank, only bad things happen fast..."
- MIKE PALLETTA - (2008 Reef log) ("OmarD"/"Scott")
Last edited by omard; 03-09-2008 at 08:27 PM.
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03-09-2008, 06:58 PM
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#5 (permalink)
| | Giant Squid
Join Date: Jul 2007 Location: Miami, FL Age: 39
Posts: 4,550
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That too, very well put Scott. I forgot about that. | |
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03-09-2008, 07:54 PM
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#6 (permalink)
| | Flamingo Tongue
Join Date: May 2007 Location: Northern Michigan
Posts: 124
Karma: 129
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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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75g mixed tank
2x 250w HQI MH
4x65w T5 accintics
Coralife 220 Skimmer
29g fuge/sump
1400gph Overflow
29w UV | |
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03-18-2008, 07:29 PM
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#7 (permalink)
| | 3reef Sponsor
Join Date: Nov 2007 Location: California
Posts: 115
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Also consider the species you are planning to keep. A 10g system is an obvious mismatch for a 10" Oscar.  | |
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03-19-2008, 06:58 PM
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#8 (permalink)
| | Giant Squid
Join Date: Sep 2007
Posts: 3,346
Karma: 4672
 
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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..... | |
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