pest?

Hello folks: I suspect I have diatoms so I took a sample of my sand and analyzed it under the microscope (the sample was taken using the "10/0.25 (160/0.17)" lense with the WF10X (DIN 18 MM) attachment). Sure enough, I do see diatoms but I also see some "worm looking" critters that I have...

Hi Guys lately i have seen in my salt water aquarium in the return tower this small dots i don’t know if they are eggs or small pests do i need them or do i scrape them off. The fish don’t seem to be interested. Sorry for the quality of the pictures it’s impossible to zoom close enough for the...

Happy New Year to All! I introduced my first corals last week and now find a number of mystery guests on my glass and possibly in the water column. Can anyone tell me what these are?

Hello. I have a 3 month old 20 gallon tank. Also I am new in this hobby. I got two corals of the same lfs. I found on one vermatid snails and removed them as soon as I understood what it was. Now I found at a similar area on that hammer coral small formations , 1 bud with 2 hairs/ filaments or...

I have this Duncan coral that has been forming bulges. And overnight they have cracked open/caved in. I don’t know if this is how Duncans grow new heads or it’s some sort of burrowing pest. the brown tissue within the cracks doesn’t give much confidence

Does anyone know what this fleshy-looking spiral thing is, at the base of the duncan? Sorry for the blues/poor quality. I can try to get a better picture tomorrow, if it helps. I had thought it was a new head growing - it's been there since I bought the frag two and a half months ago. It's...

Hello, I have a couple of those things on the glass? Any idea what they are? Good or Bad?

So if you all can see on the photo- these tiny hair-like attached on the corals body/stem. I reAlly don’t know what they are. Please help. Thanks!

One last question. I had a couple of things growing on my euphyllia coral stems. Also some fishing line sized worm looking pests on my live rock that I took a polyp off of. Are these pests to be worried about? Thoughts? I really need some input, thanks!

Hey everyone I’m Nick! this is my first post! Just wondering if anyone is able to identify the little things swimming near the top of the tank in the red circle when I shut my flow off to replace the filter floss. They seemed to be squirming and swimming pretty quickly! I feel like they could...

I love weird things in my tank. But I do like to know what they are and what they eat before I let them run loose in my tank. Arrived in a package of pods.

Good afternoon all, I am on the downhill side of a ********’ fight with bryopsis (fluco ftw), and noticed some tubes on some frags now that they are not covered in algae. I am reading a lot of conflicting info, so hoping someone could give me a definite ID, so I can treat accordingly if needed...

Hello I noticed these hard white stringy things on the Skelton of my torch as well as these red bumps on the torch. I was wondering if these are some type of pests or if it’s normal for that to be there.. thank you for any feedback.