droopy tail fin (fantail)
hi i have a reasonable size freshwater tank with 4 fish 2 zebra danios and 2 fantails one about 5 inches the smaller one seems to have a droopy tail fin almost seems like he has a broken back anyone have any ideas many thanks
Welcome to the Fabulous AC!
I am guessing its a guppy with a bad back?
Can you give us some history on the tank?
When was it cycled?What size is it?
What are the perameters,results from the water tests?
Water changes,when was the last one?
How often and how much?
Just a few questions but it will help us figure whats wrong and possibly the cause.
You can start a new thread in the beginner section or wherever!
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Its the fantail goldfish that has the problem. We have had the tank for a couple of years now with no problem, we have another fantail goldfish which is 3 times the size of the one with the "back" problem and there appears to be nothing wrong with him!!
The tank is 600mm wide x 300mm deep x 300mm high, not sure what you mean by cycled?
Filtration - juwel filter system, charcoal, poly on top with 2 filters underneath, as advised by our local aquarium.
Have not done any water tests yet as this is the only fish affected.
Changed the water last on the 4th January - 20 Litre change = 1/2 the tank
change it every 2 weeks.
Any advice would be gratefully received, cheers Odd Eyes