hI I got a 200L tank with sandsubstrate and would like to add a fish to sift it and clean it, any ideas???
welcome to fishlore!!(If I haven't already)
Can you update your aquarium information with the fish you have now? without knowing a starting point of the tank, its hard to recommend according to what's existing already
How about Malaysian Trumpet Snails? They just have a bad rep, really, they're very beneficial and helpful.
I was just about to mention snails as well haha! But I agree with shawnie we need more information before we can advise on what to get fish wise.