Do all Blue Chromis school ?

[slothy]

i seen a pic of someones tank on this site (cant remeber whos), and there were 4-5 chromis's in a school swimming around in his tank, i have one now that i used to cycle tank, wondering if i got a few more if they would school, or is it a hit or miss deal ?

 

[madd catt]

Yeah,they will like green chromis school in groups about 6 to 8 fish being the norm.

 

[slothy]

well would 3-4 school ?

 

[nacl-h2o]

Yes, I have 3 green chromis and they school.

 

[bang guy]

I suggest you avoid having 4 Chromis. Either 3 or more than 4 will work well.

 

[slothy]

3 it will be then.. can i ask why not 4 ?

 

[bang guy]

Sure
This is my observation with Chromis:
1 - will hide a lot or attempt to shoal with other species (usually unappreciated)
2 - Both will be shy and one will pick on the other non-stop.
3 - Not as shy, one will pick on the other two but since the attention is divided they seem to do fine.
4 - One will be shy. Same as #3 except the two submissive fish will chase the shy one mercilessly once they attain some size.
5 or more - same as #4 except the attention is divided so they all seem to do well. There is a distinctive heirarchy 1 dominant, 2 submissive to #1 and dominant to the rest.
My suggestion is either 3 or more than 4.

 

[wingnut]

i have a 220 semi reef with 19 bule chromis in it and thay all school thay mostly stay at the top of the tank swiming back and forth very nice to watch

 

[cadbury]

I was wondering, could blue and green Chromis school together? I thought it would be cool to maybe mix and do like 4 & 4?