Eggs?

[Cu455]

I have a 6 foot aquarium which has 2 jack dempseys ~10 years old and 1 year old, 2 Lima shovelnoses 10 inches and 5 inches, 5 tinfoil barbs 1 year to 7 years old, banded knife fish (I think), 4 line catfish 9 inches.

I found these things that look like eggs on the wall on both ends of the aquarium, there weren't many. I noticed the possible eggs while filling the aquarium after a water change. So I could of knocked a lot of the eggs off.

Are they eggs? If they are who's egg? No fish are protecting them.

[video=youtube;Jng5uR0KxNM]http://www.youtube.com/watch?v=Jng5uR0KxNM[/video]

 

[Cu455]

One of my Tinfoils keep raising it's top fin and rubbing against the other. The two Tinfoils were exploring the tank on their own, which usually doesnt happen. They stay as a group. Any ideas?

 

[Chub_by]

Tinfoils are egg scatterers so if they are on the wall the JD's will be the culprits.

 

[Cu455]

Tinfoils are egg scatterers so if they are on the wall the JD's will be the culprits.

The eggs are on both sides of the tank. They don't really look like Jack Dempsey eggs, they kind of look like snail eggs, but there are no snails.