Can I keep a small coldwater fish in a tank without filter if cleaned out every week? ?

Question

If so, what fish would you recommend? It's a 9 litre tank

Answer 1

Well yes umm you should prob. put some chemicals to keep the algae away you could find those at like pet shop. I hope this helped

Answer 2

YOU NEED 2 ALLOW THE GOOD BACTRIA AND ALGAE TO GROW IN WATER. U ALSO NEED TO ALLOW THE ph BALANCE.

YOU SHOULDNT CHANGE WATER IN 'TANK' SO MUCH-A BOWL WITH A GOLDFISH IS A LITTLE DIFF?

Answer 3

you can do whatever you want, but most fish will be miserable and wont live long. i don't reccomend it. if you live somewhere warmish you could try danio's or white clouds, they're pretty hardy, but to maintain a good water condition in a tank so small without a filter is virtually impossible, you would stress the fish out waaaay too much, the water would have little oxygen, high levels of nitrates, low ph and probably ammonia. you would be lucky to get a fish to live for 6 months in a tank so small. tanks like that are not really designed for the fish's needs but more for peoples convenience. if you had a heating pad underneath it you could probably have a betta live fairly happily if you did ten percent water changes every day, but then, wouldn't you rather get him a nice big tank?? good luck!

Answer 4

If you're not going to use a filter, I would go with a betta. They don't like much of a current anyway. Just make sure that you do clean it out regularly. Good luck!

Answer 5

the only suitable fish is a betta

and there tropical