Recent content by mslin

Hello everybody Someone knows which is the best way to change the filter to the fish tank? without killing or loosing the "good" bacteria? or damaging the water parameters? Any answer will be highly appreciated!

Hello everybody I have a 20 gal fish tank, it's cycled and running for 9 months. I had 15 guppies, plants and decor 3 weeks ago, I went out of town, so I add some "vacation food". When I came back I found out that two of my guppies where dead, and also, my fish tank was full of cotton like stuff...