Blue/Green Chromis

runningrandy04 · #1 April 5th, 2008, 06:23 AM

Hey, So I think I'm finally gonna get some fish for my tank. What I want to get is 2 false percula clowns and as many blue/green chromis as my system can handle. I'm probably not gonna be able to get the recommended 6 to make a school, but how many could I comfortably put in a 20gal. I'm going to add the chromis first since they are less aggressive. A few concerns I have: 1.) Will they form into a school if I add one at a time or 2 but 2 might be pushing it? 2.) I recently got a emerald crab (thought i might have viola). Anyway....I know they are aggressive towards small fish but would the chromis be in any danger? I'm feeding the inverts more to keep the green guy happy, but I don't know if that makes a difference I think thats about it. Thank!

daugherty · #2 April 5th, 2008, 06:26 AM

You are only going to want to put about 4 smaller fish in there.

runningrandy04 · #3 April 5th, 2008, 06:35 AM

I was guessing 2 of each so thanks for confirming that.

daugherty · #4 April 5th, 2008, 06:36 AM

you are welcome

reeffreak · #5 April 5th, 2008, 06:51 AM

Those fish school in the hundreds in the wild.You will not be able to add enough in that size system to form any kind of school.In the wild there is a pecking order.Having just a few isn't enough to keep aggression disperse.I've read in small systems and in small amounts chromis generally kill each other off til there is only one or two left.Only in the presence of a threat-like larger aggressive fish do they tolerate one another.

Consider adding only one or getting something else.

runningrandy04 · #6 April 5th, 2008, 07:06 AM

Well, thats not exactly what I wanted to hear but I think I might try 2. They might join up against the clowns. Who knows? It's good to know about schools of 100 though. Now I won't be trying to school them with 4 or 5. When I upgrade I might try 10-15.

**Bifferwine** · #7 April 5th, 2008, 07:48 AM

For chromis, odd numbers work best. Unfortunately, a 20 gallon tank is so small that you will be maxed out at 3 or 4 fish total. I have a school of 5 in my tank, and they do fine, but two will probably fight with each other for dominance.

runningrandy04 · #8 April 5th, 2008, 09:01 AM

Damn, everyone is just popping my delusional thoughts tonight. Gosh!! That odds thing kinda makes sense now that I think of it. So...I guess I'm back to one again. Oh well...

UnderwaterWorld · #9 April 9th, 2008, 02:46 AM

I have just one along with my sixline and two clarkiis, it does well

Altohombre · #10 April 9th, 2008, 05:27 AM

a lot of us have come to the realization we all need 300 gallon tanks for the most of the fish we want.

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

The Following User Says Thank You to daugherty For This Useful Post:
runningrandy04 (April 5th, 2008)

The Following User Says Thank You to reeffreak For This Useful Post:
runningrandy04 (April 5th, 2008)

The Following User Says Thank You to Bifferwine For This Useful Post:
runningrandy04 (April 5th, 2008)