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Re: A tale of four goldfish - how tank size and living conditions can affect fish

Subject: Re: A tale of four goldfish - how tank size and living conditions can affect fish
by suey2 on 3/11/2013 11:47:22

Sticking with goldies, the size per volume of water theory can be thrown out of the water (if you'll excuse the pun ) as far as I'm concerned. 3.7cm per litre refers to total length and completely disregards anything about body bulk, biomass, oxygen requirements, the nature of the fish etc. Howie is over 30cm long so applying the 3.7cm per litre rule gives him a tank of less than 10 litres. So as you can see, it really doesn't work! I don't think I could fit him in there even if he died and I stuffed and mounted him

Stocking densities need to be considered in the light of many variables, these variables vary further depending on the species in question. There is no hard and fast 'one rule fits all' that can be applied across the board. I personally find stocking rules can cause more harm than good, far too many people seem determined nowadays (and this is just a general observation) to cram as many fish as possible into the volume they have available so will find a rule that suits what they want rather than thinking about the bigger picture and finding a stocking density that suits the fish they have.

Anyone reading this might be interested in this article we put together for some further 'food for thought':
http://injaf.org/articles-guides/unde ... ing-fish-stocking-guides/