I've gotta say... there are a number of problems with this stocking...
1. Betta + Zebra Danios. Bettas pretty warmer waters and Danios cooler. I don't think either would be fully happy with any temp you had. Danios are also a bit fast and nippy for a slow moving, long finned Betta. Oh and Danios prefer larger groups than 3.
2. Betta + Bamboo Shrimp. Bamboo shrimp really need a good amount of current to filter feed effectively where as Bettas do not like a strong current. I also don't think a Bamboo Shrimp will get enough food from the water in a tank that's only 10 gallons.
3. Chinese Algae Eater - Danger. This sucker will get big and mean. Not a very effective algae eater at all in the long run and is a tank buster for a 10 gallon. Otos or snails would be a much better option. In the absence of Otos I'd go with some form of snail for the glass and maybe some amano shrimp for the plants if you can find em.
There are a number of fish you Can put with Bettas, but a little research and caution is advised. In terms of commonly available fish, Neons can make a colorful complement to Bettas. Various smaller Rasbora and Pygmy Cories are nice schoolers to go with them as well.
I too would recommend trying Aqadvisor. Good site to help you with stocking.
I agree fully, except with stocking levels. According to AQadvisor, both of my tanks are at 150% levels. They are both happy healthy tanks.
My questions would be, how planted is the tank going to be? A heavy planted tank can support more stock.
how aggressive is your Betta? Some bettas will be fine with tank mates, others get stressed, and get violent.
Larger fish tend to look out of place in a smaller aquarium, my 10 gal is stocked with quite a few species that range from tiny, to small.
My stock in the 10 includes
10 cross banded Danio's
8 Chili Rasbora
4 White Cloud Mountain Minnow
3 horned nerite snails
1 bumble bee nerite snail
2 Dario Dario (only will eat live or frozen foods very fussy)
my tank is a Jungle though lol, the first 1/3 of the tank consists of nothing but Crypt. Parva, and dwarf hair grass. The rest of the tank is stems and a small piece of driftwood. The fish hang out in the front most of the day, darting in and out of the plants. Evening the chili rasboras dissapear into the plants, while the white clouds and half of the cross banded rasboras continue to play. My Betta likes to attempt to chase the cross banded's but its like watching a school buss trying to catch a top fuel dragster lol
best recontamination is to add slowly, and check nitrates while stocking the tank. They give you a good idea of how far you are going with your stocking. My Nitrates rarely ever go above 10