What is this on the top of my fish tank? I have snails and 2 gold

Snail came to top of tank during water change

Freshwater Snails, Snails For Sale

TOP 9+ Helpful Snails For Your Next Freshwater Aquarium – Micro Aquatic Shop

Mystery Snail – Detailed Guide: Care, Diet and Breeding - Shrimp and Snail Breeder

Top 7 Helpful Snails for Your Next Freshwater Fish Tank – Aquarium Co-Op

Aquarium Do's And Don'ts

What is this on the top of my fish tank? I have snails and 2 gold fish : r/ fishtank

Fish Fantasy World

What to do About Aquarium Snail Infestations

List of Freshwater Aquarium Snails. Pros and Cons - Shrimp and Snail Breeder