Fish Suggestions

Cards are a solid choice but some people consider them boring. When in doubt, I always go to liveaquaria.com and look at the various types of fish that are available. They have a pretty comprehensive list of commonly available fish with pictures, sizes, temperaments, etc. that you can look at. From there you can go to your LFS and see if you can see anything good, or if they can order something you like.

I can see how some people would think they are boring since they never swim around when I go to the store. They usually just kinda sit there, but I really like them for their unique shape rather than activity. I looked them up on liveaqaria like you said and it says they like to have a few in the same tank but not many so should I get 2 or just 1 to start?
 
If you're still looking for some beautiful blues, take a glance at blue gudgeon dartfish - a cousin of the firefish, shimmering in sky blue. Like the firefish, they can be shy and may launch out the top . . .

Also, take a look at the orange-back fairy wrasse, which also has jumping potential, but has a more active, confident nature. Magenta head, yellow-orange back ... and a peaceful cerulian blue lower half & fins. Not too big, either.

~Bruce

Those both look really cool. I think I will talk to my LFS later this week and see if they are getting any in soon or how much it would be to order them. Thanks for the suggestions!
 
I've never kept them, but I know they pair easily. 1 is fine - they won't hide or anything if there's just one. 2 is also fine, if they pair up. Not sure what happens if they don't, hopefully someone else will chime in here because some fish will kill their companion if they can't pair with them (like two males). Not sure if Banggai cardinals are one of those fish.

I wouldn't get more than 2 since the pair will pick off the others. Also please buy captive bred if they're available. They're endangered in the wild.

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It's going to depend on the cardinalfish. Banggais, for instance, will pair off and then beat up on all other Banggais. For them, one works - two if you've got a compatible pair - but larger numbers ... not so much.

Some, but not all, other cardinals will hang together in lovely schools.

~Bruce
 
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