08-28-2009, 04:48 PM
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Originally Posted by arunas
My tank is with dark surroundings (black gravel, background). It really helps fishes to be more colourful and bolder. Still I have an idea to make some changing of the interior
Maybe even the next month..
Dark substrates will effect the colouration of many fish; when I recently moved the fish from my 70g to my 90g I changed gravel and the 90g is darker in overall shade than what was in the 70g. The change in colouration of some of the fish is very noticeable. The panda and similis corydoras darkened, as if to blend in more with the darker substrate. And the Hyphessobrycon metae
darkened quite a bit, and are more out in the open now at the same time rather than spending more time hidden behind plants and bogwood. To me, this only supports what various authors have written, that these fish prefer a darker substrate to feel more protected--back to nature as it were.
Your photos are of two different tanks I think, one with black gravel and one with gray gravel? I think they are very beautiful, arunas. A very nice job indeed.