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clairehayes
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PostSubject: fish colour change   Sat May 12, 2012 6:42 am

we have a well established cichild tank,300 litres we have got a parrot fish,jack dempsey,sevrum and a rainbow fish.We choose these because of their colours but we have found that they all go dark once in our tank after a day or two.Is it because we have black gravel and a dark background?
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Diana
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PostSubject: Re: fish colour change   Sat May 12, 2012 8:33 pm

Hiya Clare, welcome to the forum,

Looking at the list of fish you have you say you have just 4 fish in a 300l tank - or do you have 4 species and a lot of each? Not sure what you mean (I am easily confused Smile)

Anyway, you may have a problem having the blood parrot fish and the jack dempseys together as they don't really get on, and neither do severums and rainbow sharks.

It's because some are South American cichlids, and some African, but also they have different requirements regarding water ph.

I would recommend deciding which type of cichlid you want to keep, rehome the other type and then stock our tank with more of the ones you want to keep.

As for the colour change, although some cichlids do normally have colour changes as they mature, it could well be stress related too.


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kausthubh
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PostSubject: Re: fish colour change   Sun May 13, 2012 1:13 am

Maybe they haven't actually turned darker, they just appear darker because of the background and gravel?
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