Originally Posted by MegK
ok well i only have a couple of oval/round rocks and a giant plastic plant, big drift wood and now i need to buy plants, but no fish are in the tank yet
i wanted my 6 corys and like 10 neons and a larger tetra or something in a small group and then these loaches
you think that would be good?
The Loaches and the cories both occupy the same space and have pretty much the same behavior (though the loaches are much more active). If you skipped the cories, you could do 5 loaches, 10 neons, and 5 larger tetras (say black widows or diamonds) easily. Depending on the size the larger tetras get, you might have room for more.
Now, if you plant the tank heavily and wait 6 months, you'll be able to add more fish then. Whether or not cories would work would depend on the tank footprint. The only 33s I know of are the long (48x12x12) which would be fine to add a small school of cories to (if you made sure you had enough hiding places), and the flat back hex (36x12x22) which I would limit the number of bottom feeders in and get some surface dwellers (pencilfish, hatchetfish, or livebearers).
If you can afford it, Y. sidthimunki would be an even better choice than Zebras. They spend even more time in the mid water, they're even more peaceful, they stay under 2.5", are even more active than zebras, and are cute as a button. They also cost about 3 times as much. Or more. And 5 is the absolute minimum to keep. They too will eat snails and snail eggs.
Be aware that loaches will control your snail population, not eradicate it. I have one tank that has 5 Yoyos and 8 Zebras that still has an occasional snail rear its gelatinous head, and I have another that has 5 Angelicusses, 4 weather loaches, and a Sand Loach that generally has a half dozen largish Pond snails floating around at any given time.