Agreed that the arowana would be a short term fish. If you decide to get one, secure the lids, since they can jump up really hard and will easily move normal lids.
I would skip normal pacus. There are other fish that look like pacus and get to 10-12" such as the Red Hook silver dollars (Myloplus rubripinnis), Black bar silver dollars (Myleus schomburgkii), and Tiger silver dollars (Myleus fasciatus). You can have a large school of those.
Peacock bass such as temensis would be a good addition, same with Flagtail Prochilodus. A venezuela pike cichlid or cincta pike may work. They get to around 22" easily.
Then there are the catfishes such as the bolt catfish (Aguarunichthys torosus) and vulture catfish that would fit in that tank.
If you like plecos, the P095 orangecheek Pinecone pleco is pretty active during the day.
What about tin foil barbs? i saw 5 of them in a doctor's office - all of them the size of a dinner plate. Gorgeous!! Have no idea about their compatibility so make certain you read their profiles before considering but an entire tank full of them is an amazing site!
30 g FW planted:corys, female ABNP, blue angel, harleys, zebra danios, rummies,
15 g FW planted:2 male guppies, neons, pygmy corys, clown pleco, 4 types of shrimp, assassin snails
90 Gal Journal: http://bit.ly/1vC7gVX
fishless cycling: http://bit.ly/1DARf3T
fish in cycling: http://bit.ly/1ILvcfp
Wow... 370g! It's going to be awesome! There seem to be a number of large builds going on. They are fun to watch and enjoy.
Your stand looks amazing. And I had no good reference to know how large a 370G is, until I saw how small that 135G looks sitting on top of the stand! Can't wait to see this build.
Your tank will be too small for an arrowana - don't do it. Keeping one to sell on is not a good idea. You will struggle to sell it and, I would put money on it, you'll end up keeping it longer than you should in an undersized tank. The best piece of advice I can give you is ONLY stock fish you know you can support at their adult size and for the duration of their life. It's the least we can do as fish keepers.
I like the idea of a school of dollars.
This tank's twice the size of yours but has some cool fish in it.
"Somewhere, something incredible is waiting to be known." Carl Sagan
I think you could get away with that stocking, although the gourami would be a bit squeezed for turning space. They are normally kept in worse conditions and are pretty hardy. Full of personality so I hear.
"Somewhere, something incredible is waiting to be known." Carl Sagan
2" is too small in difference for turning. The longest total length of the fish should be no more than 75% of the total internal width of the aquarium, which would be close to 22.5" in total length for a full size adult fish for a 30" wide aquarium. My information is from the Amazonas magazine Nov/Dec 2014 Edition in an article from 3 Aquarium curators.
Above i misspoke about Cichla temensis being ok in that aquarium. I meant Cichla Kelberi.
I had 2 tanks - 135 G and 200 G, sold of 200 G and left with 135 G now.. Will take this off to my first floor living room once the new 370G will be ready to be placed on this base.
:)
If you need a good home for that 135, I would be happy to help you out. ha ha ha On second thought, forget it--I just saw that you're in India, and the shipping would be murder.
I agree with mommie on the tinfoil barbs. Someday I hope to have a tank big enough to keep a school of them. They are really, really pretty. Just don't keep plants with them.
I think a large school of silver dollars would look great, but not too many plant options with them, either. Although I've had luck with anubias, and crinums.