› Forums › Trading Post › For Sale Aquarium Items – Local › What are these? This topic has 3 replies, 3 voices, and was last updated March 2, 2022 at 9:03 am by Jayo. Viewing 4 posts - 1 through 4 (of 4 total) Author Posts March 1, 2022 at 6:30 pm #5502 Samuel KaplanParticipant My fish died, and these showed up, what are they? March 1, 2022 at 7:16 pm #5503 Yancey TylerParticipant Looks like some type of nematode March 2, 2022 at 12:21 am #5505 Samuel KaplanParticipant Do you think I should try to remove them? March 2, 2022 at 9:03 am #5506 JayoParticipant Samuel Kaplan wrote: Do you think I should try to remove them? I would remove all of your substrate and soak all rocks and wood with Peroxide. Allow rocks and wood to dry completely. Id also replace your substrate because those things multiple fast. Also to be safe, remove all media and replace as well. Author Posts Viewing 4 posts - 1 through 4 (of 4 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In