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Old 01-10-2020, 04:42 AM   #1
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Cardinal nipping newly introducted guppies

Hi guys,
im new to this site and to keeping fish so bear with me and be patient!

so i started keeping cardinals about 5 months ago, ive tried in the past an never had much luck but this time ive done pretty well as ive only lost one but i think there was something wrong with him from purchase.
i have a small starter tank which is about 18 litres or about 5 gallon roughly i think. i have 6 cardinals and two shrimp. they have been fine and got along well so far until i recently introduced 3 guppies. the cardinals seem to be obsessed with nipping at their tails. it seems to be just one guppy they target but will have a go at the other too occasionally.
im guessing there could be a number of issues..
-is my tank overcrowded? (although i did make it clear to shop what i have)
-is the guppy not well?
-are the cardinals territorial because they been there so long?
the last point of territory is making me wonder as the nipping seems to get a lot worse when the light is turned on?
there is no visible damage to the guppy but i imagine there are not having the best of times in there. unfortunately i dont have a spare tank to separate them atm but im guessing this is an essential i should invest in.
any help you could offer would be greatly appreciated, thanks!

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Old 01-10-2020, 06:13 AM   #2
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Yes your tank is overcrowded, the guppies have pretty flowing tails and no place to escape.
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Old 01-10-2020, 06:42 AM   #3
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Yeah I've posted on a Facebook group too and come to that conclusion, currently out shopping for bigger tank, thank you for your reply
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Old 01-10-2020, 09:51 AM   #4
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No problem.
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