The old golden rule I was taught when I first started keeping fish as a 10
year old when even airstones were uncommon here in Australia was formulated
for the keeping of goldfish.
It said that you could generally keep one inch of fish per gallon of water.
Obviously there are a lot of other variables and factors to consider and you
will still need to practice good fish-keeping techniques such as water
changes and maintenance of water quality.
president at angfa.org.au
Please visit us at http://www.angfa.org.au
----- Original Message -----
From: "Dennis Holmes" <dhdesign at onthenet.com.au>
To: <rainbowfish at pcug.org.au>
Sent: Sunday, October 08, 2000 9:23 PM
Subject: [RML] How many fish?
> I've got a tank that holds 180 litres.
> How many fish can I put in without filtration or air stones?