Tropical Fish Keeping - Aquarium fish care and resources

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Olympia 07-16-2012 06:35 PM

Small Rainbow Compatibility..
Looking for the input of someone who's kept both species. All the internet signs point to yes, (I think?!) that I can mix neon dwarf rainbow with threadfin.. But I just want to double check because I think I read that neon dwarfs are crazy? It's a 30 inch (20 gallon) tank, and the only mid swimmers are going to be the rainbows. I think my other option is the Celebes rainbows.

jaysee 07-16-2012 07:01 PM

My dwarf neon rainbows outgrew my 45 gallon (36").

Olympia 07-16-2012 07:16 PM

Yea. See I knew they were crazy. Okay so none of those.
Funny how such a small fish can need so much room!
Thanks! :-D (Kinda figured you'd be the one to reply to this. ;-))

jaysee 07-16-2012 07:33 PM

Yeah, there are larger fish that can go in smaller tanks, and smaller fish that need larger tanks. It really depends on the type of fish and how it swims. Rainbows are very active, and benefit from having room to maneuver. IMO, a tank is too small if such a fish cannot swim at full speed. I started them in a 20 high and moved them to a 29 and then the 45, before settling in the 90. In the 45, they just darted back and forth in the tank.

At the end of the day, we are the ones that have to look at our own tanks, and we each have to decide how much room our fish need to swim. I recognize that I feel that some fish need more space than most others suggest. But after moving the dwarf neons to a 4 foot tank, I couldn't imagine putting them back in a shorter tank.

Olympia 07-16-2012 07:48 PM

I don't want anything THAT active in the tank! :-D
What I'd loooove would be some gertrudae blue eyes. However, I don't think I'll find them at any stores nearby. I think they'd be just perfect. :(
Do you keep any blue eyes? What do you think of them?

jaysee 07-16-2012 08:00 PM

I tried to keep them in the 45 with the dwarf neons. I think it would have worked better in a larger tank - I think the darting of the dwarf neons stressed them out.

Olympia 07-16-2012 08:06 PM

Hmm do you think any member of that family is suitable in a 30" with 7 threadfins? Something that stays around the size of the threadfins would be great..
If not, maybe some white clouds? I'm planning on keeping the tank around 75F, though with summer it's hovering at 80F, not much I can do about that.

jaysee 07-16-2012 08:19 PM

The only other small melanotania rainbow that I know of is maccalochis rainbow. I've not kept them though. Were it my tank, I would just get more threadfins.

I would think you would have better luck mixing the threadfins and the blue eye species. While the threadfins can get a bit larger than the blue eyes, they are not nearly as massive as the dwarf neons or maccalochis.

Olympia 07-16-2012 08:22 PM

I think the threadfin's personality does match the blue eyes a lot more. I'll look into some. Thanks! :-D

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