What do you with eggs on the side of tank?

It sounds like you're describing eggs laid by fish on the side of their tank. It's important to know what kind of fish you have to know what to do!

Here's a breakdown:

* Egg-laying fish: Many fish species lay eggs, and some are known for attaching their eggs to surfaces like the tank walls. This can include:

* Cichlids: Many cichlid species are egg-layers, and they might care for their eggs, sometimes even guarding them.

* Killifish: Known for laying eggs that can be adhered to surfaces.

* Gouramis: Some gourami species, like the dwarf gouramis, lay eggs that stick to plants or surfaces.

* Bettas: Male bettas build bubble nests and will often keep their eggs there.

* What to do with the eggs:

* Identify the species: Knowing what fish you have is crucial. The care for eggs can vary significantly.

* Observe the parents: If you have egg-laying fish that care for their young, do not disturb them. They may eat the eggs or fry if you interfere.

* Isolate the eggs: If you have a species that does not care for the eggs, you may want to remove them to a separate container for incubation.

* Provide appropriate conditions: The eggs need proper water conditions, including temperature and pH, for hatching.

* Prepare for fry: Once the eggs hatch, you'll need to provide the fry with a diet of infusoria or other small foods.

If you're unsure what to do, it's best to consult a fish expert or do some research on your specific fish species. They can help you determine the best way to care for the eggs.