Hi again, we've got a goldfish tank, when I do a water change for them would it be worth while rinsing the filter for the tropical fish in the water I remove from the goldfish, this tank is well established and has all the good bacteria in or wont it work like that.
Or is it a good idea to buy this?
http
/www.petsathome.com/shop/nutrafin-cycle-120ml-31878
This is the water testing kit I will buy, is this one of the ones you recommend?
http
/www.petsathome.com/shop/api-master-test-kit-25613
Todays water results
Nitrate 25
Nitrite 0
General Hardness 16
Carbonated Hardness 10
pH 7.6
Chlorine 0.8
Thanks again for all your help