Green chromis

[ryrichards]

I had 3 green chromis & maybe 2 days later only have one? Any ideas? Thanks in advance

 

[andiesreef]

From what I have heard they tend to pick each other off until there is only 1 dominant fish or sometimes 2. How are the other fish in the tank doing? How large is your tank?

 

[Afrashz]

^^

 

[bpbonds]

I had 4 3 years ago now I have 2 they just take out the weak.

 

[JumboShrimp]

Typical scenario for them. I’d say the best chance for multiples surviving is a tank size of 150 gallons or larger.

 

[Midrats]

My quintet has been thriving in a 50g for nearly a year. They are too busy eating and surfing to kill each other with multiple daily feedings and 80x flow. Fingers crossed.

 

[JumboShrimp]

I just found a post by @DeniseAndy where 10 Chromis went fairly quickly down to a stable group of only 3, in a 210 gallon tank. :(

 

[SPS2020]

12 to 1 ratio for me. Start with 12 and down to 1. I have heard to use pvc 90's in the bottom of the tank for hiding...but that isn't very attractive.

 

[ryrichards]

From what I have heard they tend to pick each other off until there is only 1 dominant fish or sometimes 2. How are the other fish in the tank doing? How large is your tank?

The other fish are doing great & it’s a 75 gallon

 

[ryrichards]

Thanks everyone for the information. Since I have a 75 gallon I’ll probably not get them again. My other fish are doing great still.