Eggs on the side of the aquarium glass.

Small White Egg Cluster on Glass REEF2REEF Saltwater and Reef Aquarium Forum

10.13.3. Planaria in the Aquarium

One of my fishes is laying eggs ( or mabey it's one of my snails? )There's an Angel fish in there as well as two black tetras, 3 neon tetras and 1

How to prevent snail eggs from taking over your aquarium - AquariumStoreDepot

What is this on the side of my tank? Fish eggs?

Spawning Fish and Fish Eggs in the Aquarium - A Guide for Beginners

Types of Aquarium Snails

I think our golden algae eaters are harming our ghost knife fish

Weird little eggs? On aquarium glass, what are these? (Tank inhabitants in comment's) : r/Aquariums

How to collect cory eggs, Putting Corydoras eggs in a breeder box to hatch.