10-08-2012, 05:42 PM
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Originally Posted by beano129
Thank you for your response - I've just been and bought the necessaries to fill my tank up with water and start the cycling process.
I went into the fish shop today and I really think their advice is terrible.
I've got a 1000 lph Eheim canister filter (a 2217) and they were telling me that it's more than big enough for the tank and that I could get a couple of little shawls of fish along with two feature fish.
That seems a big much from what i've learn't and observed since I've been visiting this forum.
Is there anything else you can suggest?
I'm leaning towards just having 2-6 fish that may grow to be a little larger rather than a few more smaller school fish.
Can you suggest anything outside of Oranda's / Blackmoors?
The Eheim 2217 is rated for a 600 liter/159 gallon aquarium. This is way more than you need on a 40g tank if you have smallish fish. If you are thinking goldfish, they do need higher filtration, but I would recommend a larger tank for goldfish, especially if you want more than one. I'll let the goldfish experts comment.
In a 40g, you could have 40-50 small fish of the correct species; or thinking of the more common tetra (like glowlights, phantom, etc) perhaps around 30. The numbers really depend upon the species, as some fish are active and need m ore swimming space, while others of the same size or even a bit larger might fare better in less space because they are quieter, less active, etc.
My point in this is that the advice fro the store was not that bad, depending upon what fish species they had in mind.
Finding 5-6 larger fish that will work in a 40g is not going to be as easy. Knowing your water parameters will help as someone suggested.