Green chromis-durability

I quiet like them to be honest.

I started with 7 4 years ago and still have 5 and they seem to get on together now.

It’s very odd in that they are all slightly different sizes, from small to large so there is clearly something at play, like pecking order or something.
 
I put 2 in my tank from the second day anticipating them kicking live rocks and adding ammonia to help my tank cycle. They made it through for 2 months including an ich issue. Probably the most hearty fish I’ve purchased. Though they can be a little aggressive to more laid back fish like pajama cardinals
 
What I have found with them, their numbers will dwindle until each remaining can have there own territory at night. I have a 180 and a group of 8 that I had are now 4. The 4 I lost within the first few months, then these remaining 4 I have had for a very long time. I believe their aggression towards each other has to do with territory and the number you can keep is based on the size and scape of tank. This may be why in many tanks they will die off until 1 is remaining. I could be wrong but this is just personal experience over the years.
 
I was hesitant to grab a chromis at first due to high chance of uronema.

So I picked one up at my LHS and QT him for 6 weeks. These guys are very hearty . Mine is very active and hangs out with my mated clowns. He can definitely hold his own when he is bothered by the female clown. And eats anything I put in the tank ...I can even see him pick on things off my back walls . Great looking and active fish
 
Yep, they are tough little fish and very cheap to buy. However, I started with seven and I'm now down to just the Male and one Female. That is in an S-650, so space is not the issue. This is just my personal take, but if you have Scuba dived a fair bit you'd notice that Chromis tend to live in and around a very large piece of SPS. If you go near them (or any other threat) they all disappear into the SPS colony. In our tanks the vast majority of us just do not have any SPS that is really big enough for that feature. I think that we are trying to keep these fish in an environment where they are not that happy.
 
Yep, they are tough little fish and very cheap to buy. However, I started with seven and I'm now down to just the Male and one Female. That is in an S-650, so space is not the issue. This is just my personal take, but if you have Scuba dived a fair bit you'd notice that Chromis tend to live in and around a very large piece of SPS. If you go near them (or any other threat) they all disappear into the SPS colony. In our tanks the vast majority of us just do not have any SPS that is really big enough for that feature. I think that we are trying to keep these fish in an environment where they are not that happy.
Interesting. This kind of goes hand in hand with my space/aquascape theory. Maybe having large colonies is the key. I do notice mine sleep in and under the branches of my larger acros.
 
I have had one for about a year and a half. I got only one know they will pick each other off. Mine gets along well with everyone but will chase my dansels now and then, which I suspect is why I don't have the mean damsel problems that people talk about.
 
I have had 2 in a 45g for about a year now and they don’t seem intent on murdering each other and are thriving. The bigger one does scare off the smaller one at feeding time but as long as I disperse the food around the tank it’s not an issue and they both eat plenty. I keep a pretty pristine and stable environment so I can’t really speak to their hardiness but everyone seems to agree they are one of the most bulletproof options in the hobby. They do love to hide, I thought they were dead the first week I put them in the tank as they immediately disappeared but once they got comfortable they are out all the time and only hide at night. I don’t have big acro colonies they just hide in the rockwork.
 
Feed them like anthias, give them plenty of space and QT to ensure they are uronema free …. and they can be quite hardy. Otherwise, don't bother.
 
I have a group of 9 after I added 2 from another tank. They all get along and are great movement in the tank. The first 7 have been together for about 2 years, maybe 2 1/2, can't be certain but a while now. I recently added a pair of Talbots damsels and they accepted them easily with zero aggression. I have lots of holes for sleeping so no fighting over that. I think it's more about having a dominant fish and the rest are fine. I think without a dominant they are just all fighting to be top dog.
 
20190817_172005.jpg

A pic or it didn't happen.
 
I have somehow lost every single Green Chromis that I have ever had-- but I am going to try again soon!
 
I started with 7 but one didn't make the transition to my DT so down to 6 after 2 days.
A few days later, I could only find 5. One had 'disappeared'.
A week later, another one disappeared and now I'm down to 4.
I'm beginning to think that Chromis are prone to rapture.
 
ive always been afraid to get chromis because of the risk of uronema though ive never been one to setup a QT in the past this latest build i actually setup a qt so maybe i can get some now and treat them before i put them in the DT
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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