“a bubble maker thingy”  An air stone?

Will you be keeping guppies with a Betta? Male Bettas sometimes see the waving tails on male guppies and will go after them. All Bettas, but especially females, find guppy fry wonderful!

I prolly have the missing sections to your filter pieces. ;)

Some plant bulbs whose name start with an A are probably Aponogeton. They are found in Eastern Africa, Madagascar (lots of them were found there), India, Sri Lanka, Southeastern Asia and Australia. Few of us, like miskairal, can wander down (or send her spouse down to the creek), while looking out for poisonous snakes and hopelessly lost salt water crocodiles, to dig some from the Creek bed. They are also now found in places where they didn’t used to be, including California and probably spots in Florida.

Aponogeton bulbs which are sold as wonder bulbs are often Apon. crispus or a crispus hybrid. Oh! Plant the bulb point up.

http://badmanstropicalfish.com/stats/plants/stats_plants2b.html

Once in a while one of those bulbs will turn out to be a little tiger lotus – a neat little water lily which will grow in a reasonable lit aquarium.

http://badmanstropicalfish.com/stats/plants/stats_plants5a.html

The Aponogeton are medium light plants and will grow where some will not. They also flower. If you rub the flowers together gently to move the pollen back and forth, they will fertilize one another and you may get a bunch of corms, which can be planted in very shallow water, (Here’s where that one or two gallon tank or a plastic shoe box might be handy.)

http://www.acquaweb.8m.net/notas/036.htm

Some clown suggested running a small paint brush along those flowers and then along other flowers. That was futile. Someone ought to tap him on the noggin with those little paint brushes, rather than passing that advice along in the literature.

Some are seasonal plants and will shrink back to the bulb, sort of like tulips. My tiger lotus came back for several years.

I would put the pH raiser and pH dropper on a shelf and forget about them. ;)

What is the cloudy water clearer? Is that one of those flocculents?

Unless you are getting a mystery snail, how do you get (only) one snail? By the way, be careful that that is actually a mystery snail and not one of those apple snails. The Apple snails would eat your Aponogetons, bulb and all. I’ve had them even eat the very tough and for some fish, mildly toxic Java fern, rhizomes (root mass) and all! I half expect they'd eat the computer too. ;)

There’s always more test kits (certainly see Angelhologram's suggestions) and fish stuff you can get. You might wait until they are needed.:)

Maybe spend your extra cash on a third Cory. ;)