algae hardly survive, snails live, but you need to know which ones to take. the big yellow ones grow fast, but they don't have enough to eat. after a few months they die, they can eat dead fish.
small snails are more likely to clog the aquarium, it is very difficult to get rid of them later.
Has some pros:
if a child wants a fish, the easiest way is to buy this ready-made aquarium, which has everything.
Has some cons:
more than 1-2 fish is not recommended, because. filtration will not cope and ySee full review