small community fish in a large tank

[Captain Hook]

Harlequin rasboras are nice schooling fish that stay mostly to the top. Rummynose tetras will make a nice school in the bottom to mid area of the tank. Both groups (say 20-30 of each easily) will provide nice movement, colour, and interest.

Rainbowfish are nice fish that won't school as much but still stick together and look really nice. They usually get to be 4-5 inches and under.

 

[RTR]

Some of us are devoted Python users - until that came on the market I had no tanks over 55s. Even though I age most of my water for partials, I can Python out, pump in from the aging tanks/Rubbermaid food-safe trash cans, then refill those aging tanks by Python. As much as I could use the exercise, I'd rather not. Besides, herself objects to sloshed water outside the tank room.

I agree on the Harlequins and the rummeynose, but the latter do not have the best color in my tanks - I believe that they really do show better in softer, more acid water than my moderately hard, alkaline water. And I am not about to do water mods for a large tank. Rainbows, especially the drawf neon rainbow, make excellent shoals in larger tanks - but in the AM they tend to be too busy breeding to school. By night they are more accomodating.

 

[fishpoor]

Wow, I'm envious. That said.
rasbora espei (hardy, colorful,small
serpae tetra (hardy,colorful)
dwarf rainbows (peaceful)
turquoise rainbows (peaceful,get very pretty as they mature)
panda cories (get a bunch,they stay small and are harmless)
zebra loaches (stay around the bottom ,fun to watch)
pleco - the one I have was sold to me as a gold nugget, but he's15", keeps my tank spotless and doesn't bother 1" fish or plants. He's 9-10 years old, so may be full grown.

If i read right, you only have the 1 filter. You'll want at least 1 more so you always have an established filter going. With that amount of water. Test your water and try to keep fish and plants that are hardy and happy at your ph. Neons are pretty but need soft water for long life and trying to stablize the ph on a water change for that size tank will get really expensive as well as difficult.