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when you switch on the lights, the transition from darkness to light probably shocks/scares them and thus their colouration fades. after awhile when they're not scared anymore the colour comes back
Does anyone know why my tetras; cardinals& rummy noses & some other fishes (not my platy & swordtails though) have faded colours after a long time in the darkness? Usually when I swtiched on my PL light at night (off during the day) they are faded but after a while the colours came & they look beautiful again! Why do they have to spend time in the light to have bright colours or are they scared when its dark!!!!???
when you switch on the lights, the transition from darkness to light probably shocks/scares them and thus their colouration fades. after awhile when they're not scared anymore the colour comes back
is it? but I don't think so as i sometimes look at them before turning the lights on, they are faded...the rummy nose is not sooo red, the cardinals are not attractive at all...
I was wondering if its their defence in the dark since they are colourful, they maybe easy target in darkness...maybe
Last edited by Quixotic; 18th Feb 2008 at 13:47. Reason: 'dun', 'r', 'b4' are NOT proper words!
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