pest id

I left my house for 2 days and came back to my tank with these guys in here. Anyone know what these are? The video isn’t very clear but they look like baby shrimps. If this helps, I turned off the lights during those two days to try and get rid of some of my algae and see how they would respond...

Hello everyone, I hope this message finds you well. Attached is an image (as close up as I could get of a new arthropod in my system. I believe it is an unwanted sea spider. I have only noticed them on glass and back panel of my AIO system. There are a few dozen at this point and i only...

Wassup Reefers, found this tiny orange legged crab hosting in my elegance coral today. Anyone have any idea what it is or if it’s bad for the corals health?? Thanks in advance!

Hey y’all, I need some help. I’ve got a more detailed background of my tank on my build thread, I’m going to post a few pics and if anyone can help me ID I would be so thankful. I’m going to have to restart my tank & rip clean, especially with all these issues, but I would still like to know...

Is this a “strawberry” anemone? I guess that’s a mojano? That’s what people in my area call them. Should I murder it or is it reef safe?

美女と野獣ゾアを繁殖させたい。 しかし、彼はまだ健康に見える成長していません 私が彼の断片をチェックすると、彼の組織は革のようなもので覆われていて、彼の組織は旗から剥がれていました。 どういうわけか原因がわかります ・藻類は旗で覆われています ・接着剤を大量に使用しました ・ストリームが足りない 私はそれらを解決しました。以前より頻繁に水を交換しました。藻を取り除きました。 静かに見るべきですか？ そして彼のカバーは彼自身を保護していますか？

Hello, ive has this acans for a while now and its been doing pretty well, but when i woke up this morning i noticed what looked like feathers coming from underneath it, i picked it up and it had a long white tube connecting it to the base. Im wondering if anyone know what this might be, id its...

Hey guys ans gals. Can anyone out there tell me what is growing on my rasta zoa it apeared last night and had doubled in size this morning. Any advice as to and ID and what i can do to remove/treat would be amazing!

Any idea what this can be on my hammer? I thought it may be growing more heads but I don't think that is it.

Is this a sundial? The shell is not flat like pics of sundial snails. It’s shaped like my nerite snails in freshwater.

Hi, Any ideas what this is? Edit: I'm pretty sure this is a red flatworm but would still be good to get confirmation from those who have seen these before. This image is the largest one but there are plenty others on my glass. Thanks for your help! (My tank has Trochus, Tectus, Cerith snails...

I found some type of crab in the Hikari half shell clams when feeding the tank? Should I toss the bag or consider it a snack for the tank? Also what kind of crab is it?

I spotted these strange tentacle looking things on my zoa rock. Is this aiptasia? I moved the rock to a quarantine tank for the time-being. There were a few other rocks very close to this one. Should I take them out as well and try to salvage any Zoas I can?

Hey! I'm new here, but have had a waterbox cube 10G since start of April. My question: I have some zoas(rastas) which have been closed up tight for a couple of weeks now. Today I did a freshwater dip for 2,5 minutes and these little orange ish little things came off. What are those? I had the...

Weird mushroom looking things. Theyve been growing in that spot for a while. Not sure if bad or good or neutral?

Any help to ID what these things are on my torch coral?! Some are pink and some are white. Are they harmful?

Started noticing these little hair lookin guys in spots on my rock, wondering what they could be? Hydroids maybe?

Hi from Pittsburgh area, everyone! I was hoping for my first post to be about the Nano tank I’ve been cycling - it’s my first. I’ll do a post in the build forum next, I’m adding livestock now. R2R has already been a great help and I can’t wait to participate more! Unfortunately, today I found...

Wassup Reefers, Cleaning my sump today and found this little thing on my skimmer. I have only seen one once before in my tank a hand full of months ago and it was between a frag shelf and the glass. (which I got rid of) It looks almost like a vein or root that definitely gets larger over time...

New reefer. 32g bio cube. Just finished cycling and added some clean up crew yesterday from my LFS (4 astria, 10 blue legged crabs - that’s all they had available). This morning 3 crabs appear dead, one shell has holes in it, and I see this freaking thing. what the heck is this?! I put on some gloves and...

Yeah, I got no words here, it seems to have sprung up randomly (like all the worst algaes do) and didn’t appear near a frag or anything, what is this? Is it some sort of super-cyanobacteria? Will it harm my corals or snails? (I’m afraid the latter would probably eat it regardless) And most...

What in the world is this it is atached to the rock but it is soft and weird looking inside the bludgeoned it looks like sand or eggs or something no idea what I’m earth this is really worried what I should do right now please help I’d this stuff

Hey Reefers, So I went to my tank to do a bit of maintenance this evening. So I put my tank in feed mode to stop the gyres and turn the return pump down to 1%......and when I turned on the tank lights, to my surprise, I see thousands of very tiny worm-like creates swimming around. I am...

I was looking in my tank with the lights on red, and I saw this one anemone looking clear thing with with bubble tips on the tentacles. After a closer look, I saw they were EVERYWHERE and there are at least 25 in my tank. Can anyone ID this? I did some research and it seemed like they could be a...

Doesn’t look like a normal bristle worm