advice on red gills on danios..

[claudio1]

hi all,i'm new to this site and to this hobby as well,i had a 6 g tank with 6 danios for about 3 months,then decided to add 2 mollies(been told it will be ok by a pets @ home shop),after a week doing the normal routine water change,tested the water to find the nitrate levels at 80,but no ammonia nor nitrites,done 50% water change for 3 days but the nitrate would go down to 40 for few hours only...done some research and decided is time to upgrade to a 15 gallon tank,everything went ok for few days but after 3 or 4 days tested the water with nitrates at 40,no ammonia but nitrites at 0.25,done a 20 litre water change on that day,next day tested the water and had nitrates at 20 but ammonia and nitrites at 0.25,done a 25 litres water change for 3 days,now everything is ok nitrates at 20,ammonia at 0 and nitrites at 0 as well...i would like some advice on wether or not this danio has red gills from ammonia poisoning...thanks.


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[BBradbury]

Your Danios

Hello claudio...

Your tank is too small. The water isn't clean. If you're going to keep Danios healthy, you'll have to get them a larger tank. 20 gallons (80 liters) is the minimum for this kind of fish.

The larger the tank, the better your chances for keeping a healthy tank. Right now you need to replace half the tank water and do it a couple of times every week. Get a floating plant into the tank. Hornwort is a good one. Just drop individual stems of this plant into the tank water.

B

 

[claudio1]

hello bbradbury.
thanks for replying,can you tell me what fish and how many can i keep in this tank,at the moment i don't have the space for a bigger tank...
thanks again.


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