Trouble with my 10 litre goldfish tank

[mapman]

its hard to get all in it takes me 5 hours to clean ,I can get the place what made it for me and post link for anyone who wants one made,i would love a wall tank but would find this hard to clean. the tank would be about say 1ft d x5m x 10 foot sounds good ,would be slim but how to clean.

 

[charlie senator]

I,ve had tanks most of my life and like rat and mapman i don't change my filters unless they fall apart.
You need the filters to build up the good bacteria that your tank needs. Its pointless to change it just as its starting to do its job.
I use an external filter and check water about once a month.

 

[mapman]

its very important for the filters to build up the good bacteria ,if you don't your fish will suffer and die,its not worth cash if done wrong.