Cory with wound and fuzzy growth, worms in tank

[ChibiFish]

Thank you for that information, I really appreciate it. The reason I purchased the Maracyn Oxy is because it mentioned that it treats that type of infection. But I'm new to this brand/medication so any additional information about it would be welcome.

I'll look into methods of increasing my GH to help my platies out, thank you for mentioning that!

 

[ChibiFish]

I should mention that the goal is also to get Frank with more of his friends again. He started off in a small school but was the only survivor after an issue in an old tank. However, I'm also worried that the new tank may become overstocked if I add more fish

 

[Essjay]

I'll look into methods of increasing my GH to help my platies out, thank you for mentioning that!

But increasing the hardness would be bad for the cories and tetra. Hard and soft water fish are not really compatible in the same tank.