Sean77 Sean77
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  • Posted on: 15/5/2016 12:02
Water Change #1
Hi

I have been told that I have to do a 20% water change, I am not that good/confidant with maths, and I am trying to figure out what is 20%?

I have a AA Aquarium Hexagon 550 fish tank which is 22 litres.

How do I work out 20% etc please.

Thank you and thank you in advance for your answers.

Sean.
james15 james15
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  • Posted on: 16/5/2016 17:11
Re: Water Change #2
20% is one fifth so divide by 5. 22 divided by 5 is 4.4.
22 litres is very small, what have you got in there?
Sean77 Sean77
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  • Posted on: 19/5/2016 16:39
Re: Water Change #3
Hi James,

Thank you for leaving a message.

I have 2 minnows, and 3 danios in the tank.

Attach is the fish tank that I have, its a AA Aquarium 550.
james15 james15
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  • Posted on: 22/5/2016 18:11
Re: Water Change #4
Both of those species should really be in a bigger tank. Minnows require a minimum of 60 litres and danios require a minimum of 90 litres. 22 litres is not considered an adequate sized tank for fish, despite often being sold as such, and is really only suitable for shrimps and snails. Also as both minnows and danios are shoaling species, they should be kept in larger groups, which a 22 litre tank obviously will not allow. My advice would be to either rehome them or upgrade to a bigger tank. Have a look at our caresheets for more info on the requirements of the species you have.
Do you have readings for the ammonia, nitrite and nitrate levels in your tank?