I decided to invest in some live plants for my axie a few months ago (hornwart and frogbit). The plants were doing really well for awhile, but have been dying recently. I removed most of the plants and noticed some critters now in the tank that I assume came from the plants. There were few before, and I researched and identified some and determined them to be harmless to my axie. However, there has been a sharp increase in the number of critters in my tank that don't seem to go away no matter how many times I change the water. I have also noticed some white, hard looking substance in my axie's gills that could be fungus but may also be some of the critters. What should I do?? Is this just a normal ecosystem in my tank or is it infested? I'll post pics if needed