I'm planning on making a 125gallon community aquarium. I was planning on nice schools of fish, also the tank to be very colorful. Any suggestions??

well, as for fish, a very nice community fish for a 125 gallon would dwarf gouramis maybe about.. 5-10 of them, harlequin rasboras are very colorful maybe like 10 of them, maybe some angels but might be risky for community use about 2 or 3 of them, cardinal tetras, could have about 12 of them, and cherry barbs with the same numbers, maybe 7-12 albino corydoras could bring life to the bottom, rainbowfish ( preferabally boseman's ) about 5-10 of them would be cool, what good is a community tank without livebearers? about 2 male and 5 female sailfin mollies could fix that and they grow about 4 inches, and maybe 10 pentazona barbs, plus plants and ornaments,

this is mearly what i would pput in for very colorful schools of fish, it is all up to you, pentazona barbs are a substitute for tiger barbs for saftey, and cardinal tetras are a substitute for neon tetras for survival reasons, and dwarf gouramis , not normal gouramis, because dwarves are more colorful and they wont grow large enough to eat the cherry barbs and cardinal tetras.

You might like a few of these fish if you type them in and see a pic of them on google, in my idea they are the best colored community fish and are great for schools of large numbers so a large 125 gallon would be great for schools of fish like this, but this would be about all that could fit in it. probably too much, but that is why i made a numbers range, I.E. 7-12 so 7 would be definitely fit and 12 is.. maybe pushing it but would be absolute max, with the exception of the cories, maybe 5 more cories would be perfect, the bottom has to be active too

And ... maybe som clown loaches, two of them, or 3 would be nice, just because cories are so small, dont want the bottom to be a wasteland