Yes or no snails

[Rubraita]

They gave me these snails, it's better to insert them, or it's better to leave them alone, I don't want them to increase in disproportionate numbers

[Harry]

Malaysian Trumpet snails - they serve a purpose. They clean up detritus, they burrow into your sand or other base media, cleaning it as well. I keep them in my tank. But it is a matter of personal preference. I suggest you research them on the internet to learn about possible benefits and problems.