I set up my 55 glass with plants, and let the snails do their thing alone for a month to be sure I would have a nice, established tank. There were several at that point, but they keep the algae from covering the plants. I dislike any chemicals in my tanks at all, unless I absolutely can't avoid it. The dumpwater can be very pulluting to the water supply/ground water for no reason. Esp if you are fanatical about having clean tanks as I am.
I ended up with two "eartheater" ciclids (imagie a convict on greyscale, that's it...I don't know the name as they're new and I never saw them in any fish book I have).
Everything, as we all know, has a downside. Ciclids of the eartheater variety are not as sweet with other fish as every book on them tells you. They like to be bullies, and the only ones worse are the dwarf gouramis. I have two of the former, and two of the latter, and they love to be jackasses at any chance.
This is in a 55 with two red whiptail cats (which I love--very nice fish, but you have to make sure they eat by hand-feeding, as both former fish are pigs), four glowlights, pair of swordtails, and my other faves, two peacock gobies--who really can't hang with the boisterous others, I plan to move them very soon. So they have plenty of room.
I did the "new fish" acclimating, ie change the decor around, shut off the lights, feed everyone, and so on...nope.
There's also two fry nets...one 2 month old guppy I saved from the petstore a few days old, and 13 new guppies in a fry crib, and then the swords spawned from all the brine shrimp. Weaker fry are not immune from getting bit through the net from the dwarfs, either. if the sit on the bottom of the net.
So, I need to allow my new bigger tank to finish blowing dust around, as the screen for the fry gets clogged very fast and stops the filter. I plan to try a filter cover, as nutmeat rags seem to be the right thinness, but get clogged almost immediately.