Hi, this is my first post.
I was wondering if these Congo tetra eggs are fertile. I have a school of Congo tetras that breed on average 3 times a week, but their eggs seem to always turn white. The yolks turn white, but the egg case remains clear and somehow gets larger.
I am holding the eggs in a small 2.5 gallon tank; the pair of Congo tetras paid their eggs in here before transferring back into the main tank. I have a sponge filter, heater set to 78 degrees F or 25 C. I also put some alder cones and guava leaves.
Any help will be greatly appreciated, thanks!