There is some sort of blue-colored fish anti-fungal that has been used successfully to keep fungus off eggs. I can't remember the name.
As I recall from our chat, you are raising crested newt eggs. Half of them are genetic duds and will naturally develop fungus. I have never had a problem with this fungus spreading to the good eggs. But if this is the problem, try removing the duds as soon as they are identifiable (by lack of development or by early signs of milky color or fungus).
Saprilagenous fungal infections are more effective at cooler temperatures however the temps needed to inhibit the fungus would not be appropriate for newt eggs.
In general, I just remove the infected eggs if they appear to passing the infection on to healthy eggs.
My axie is acting woerd he was a rescue as stated in a different post he got better and now seems to be deteriorating again...again all tank conditions are OK and as should be. He seems to have some black dapple like pattern under his bottom lip? Is that normal? And his two back feet have a little wierd growth? Almost? Tiny tiny tiny lump. His capillaries in his feathers also appear darker and more visible. Any help would be appreciated
Hi...I used to have a Doctor Fish business...I closed about 3 years ago, but still have lots of big, chunky filtration rocks (lava) how could I clean a few of these to use with my Lottie, please? Would they help or hinder overall tank health? don't want to cause her any problems...love my girl to bits!! many thanks in advance. xx