aggression

I've had a Solan Wrasse in a 120g for a few months. I got a Xmas Red-lined Wrasse and a Blue Side Fairy Wrasse. The Solan chased the Blue all over the tank. Ignored Xmas. I put Blue in isolation box. Solan still aggressively attacks box Blue is in. It's been 5 days. How long does it usually take...

I have a 26 gallon lagoon with a clownfish, a gramma, and a yellow coris wrasse. I am considering adding either a blood red fire shrimp or a coral banded shrimp. What have people experienced with these two inverts aggression-wise? I've read that both can be territorial, but coral bandeds may...

Hi All, I have a carpenter flasher wrasse who has decided to be the bully of my tank. I’ve got a 50 gallon with live rock that has a bunch of caves and hiding spots. My other fish are very chill (firefish, orange spot goby, chalk basslet, and a pajama cardinal). The wrasse was one of my last...

Okay here's the deal - looking for advice... Situation: I've screwed up the addition order (I think) for a Powder Brown tang, Purple tang, foxface, and Kole tang. Looking for advice on how to best remedy my current situation. I should have known better... Fish in question: - 1x powder brown...

Hi there, I’m new here and need some help with trying to figure out next steps. I’ve had my tank up and running for a month now and put in two clownfish as the starting fish. They were doing great with no issues. I decided a week and a half later to add a tail spot blenny and a purple...

Hi all, I've added my flame angel and lemonpeel to my 8x2x2 reef yesterday and there has been some conflict since, torn fins and following each other around for the most part. The lemonpeel started off as the aggressor but it looks like the flame is taking over. I understand some aggression is...

Hello, Once again, I’m facing a problem and need some advice. Four days ago, I added a Flameback Angelfish and a Yellow Coris Wrasse to my tank. Right after introducing the wrasse, I noticed some small white spots on its body — visible mainly under blue light — so I initially assumed it...

hi everyone! 😙 im thinking im going to pull my yellow Coris wrasse out of my display (if I can catch him with food) and put him temporarily in the sump, I want to reset the hierarchy. he's bullying the **** out of my leopard wrasse and my possum wrasse just randomly. (he's shot up in size and I...

I recently added a Bluestar Leopard Wrasse to my tank, but unfortunately, my Coral Beauty didn't take kindly to the new addition. Every time the wrasse appears, the Coral Beauty aggressively chases it. Since the introduction, the Coral Beauty has also become more hostile toward the other fish in...

Hi all! This morning I noticed that my damsel’s tail fin looks like it’s been completely chewed off. It’s a little red around the edges. He’s still swimming and eating just fine. I’m planning on upping feedings until he heals. Do I need to do anything else like treat with antibiotics? I’d...

2 days ago i’ve added a chalk bass, a cleaner shrimp and a firefish all at the same time to my 80gal tank already inhabiting 2 snowflake clownfish and 2 pijama cardinals. The cardinals are the most peaceful thing on earth and stay out the way but my clownfish have accepted my bass and shrimp...

Hello everyone, earlier today I noticed these marks on my clownfish. Im still fairly inexperienced in the hobby and google said these might be bite marks so I wanted to see if anyone might have any advice. He shares a 40 gallon tank with three sailfin mollys and a pajama cardinal. One molly is...

So I got two black pyramid butterfly for Christmas, I wanted them for my reef tank, long story short tho. I did not quarantine and just put them in my display and they were covered in flukes like a week later so I took them out and I did a freshwater bath for 5 mins, so many flukes came off…...

Contemplating adding a new fish to the mix and would like feedback. Want to add a 3-4” gem tang to the group. Currently I have a 3” clown, 2” orange shoulder, and 2.5” Kole eye tangs. Tank is 112gal 5’ wide tank. Plan on upgrading to a 250gal in a few years. Thoughts?

I recently bought a pair of banggai cardinals. They were and still are really small and couldn't be sexed. They've been in my tank for over 10 days now. One is very active and is eating well and swimming throughout the tank. The other hangs out in the top corner or at the back of the rock...

I recently added a Midas Blenny to my 35g aquarium, with a pair of clown fish. The last Blenny that I had was super peaceful and shy, but this one has been periodically nipping at the clownfish fins and one clownfish has some damage to his back fins now. Anything I can do to help with the...

Hi Everyone, I have a 32 gallon tank (about 3 feet long) and currently have 5 fish: 2x Blackstorm clownfish 1x Yasha goby w/pistol shrimp (the pistol is maybe 1/2 an inch lol) 1x Helfrichi firefish 1x Citrinis Clown goby 1x Cleaner Shrimp The tank doesn't have many active swimmers which is...

my tang population of 5 was reduced to 1 while on vacation a year ago. The tank was cared for by somebody experienced while I was gone, so it wasn’t neglect. I still don’t know how or why 4 suddenly died all together. The lone survivor was my purple tang, which immediately took the dominant role...

Noticed my damsel wasn’t swimming around. Found it like this (see picture). Still swims, sometimes upside down. Very lethargic/easy to catch. It is in a “newbie mistake” overcrowded tank, but it’s generally peaceful. I’ve qt’d the damsel and have dosed my tank with Reef Rally Pro. I’m...

I have a 20g with a talbot damsel who I think is maturing and turning out to be an butt (yes I know who woulda thunk). It’s starting to kind of target my bar goby when it’s swimming near his rocks. I was wondering if there’s a fish I could add to disperse the aggression perhaps like a royal...

Clownfish pairing.. We got our first clownfish a few days ago 1.5”, she’s in a QT. We got the second 1” looks very tiny, we hope to pair tonight. I know the nipping is part of dominance. But I’m afraid of leaving the little one overnight and waking up to a dead fish. I’m thinking I’ll add a...

I am well aware wrasse of the genus Thalassoma specifically Lunare, Hardicke and Paddlefin are extremely aggressive and will destroy a cleanup crew. I know they can also bully small fish but is it true wrasse of this genus will actually prey on small fish as well? Would damsels, anthias...

A few weeks ago i bought a coral beauty for my 40g tank. 2 days ago I bought a fire fish. I was planning on getting 2-3 because I know they are better in groups, however the fish store only had one. I put the fire fish in that night, and the next morning i couldn’t find him. I assumed he was...

Hello! I have 2 tangs, a purple and yellow. They have a habit of ganging up on certain newcomers (killed a powder blue tang and a coral beauty angel on seperate occasions). Right now I have a copperband in the tank with a partition up so the tangs can't get her. To avoid aggression I thought it...

I added a yellow watchman goby to our tank last week and my tailspot blenny immediately started attacking. I put the ywg in an acclimation box for six days and let him out yesterday. The attacking is slightly less persistent but still occurring regularly. I have to sit next to the tank and waive...