I recently decided that I wanted to heavily plant my 20 long tank, more so than before, and so I won't be able to get corys since they need larger of just sand to filter through. I have been having a very minor algae situation, ever since I changed my lighting to 7 hours split photoperiod all of the algae I was having before has gone away, and only brown algae has been growing in my tank(along with some clearish-whiteish dots on the glass of the tank, which supposedly are normal in a new tank and will go away if the tank is properly cared for), and in moderate amounts. I decided to combat the not being able to get cory problem and the minor brown algae problem on my plants and glass with amino shrimp. I think they fit my spots/stripes theme of the tank and If I can get them, I would love to know how many I should get to completely my tank stock. Here is my current stock: - 5 zebra danios - 5 long finned zebra danios (school with normal zebras, to form a school of 10 danios) - micro sword, ludwiga, anubias, argentine sword - 1 pearl gourami, and before you start replying saying they need a minimum tank size of 29 gallons, she seems to like it in this one and is only 2 inches currently, if she ever goes above exactly 4 inches I will relocate her to a larger tank in my home. Here is my heating/filtration/lighting: Aquaclear 50 w/ fluval biomax & a sponge, Aqueon 100w pro heater set to 76 degrees fahrenheit, finnex 24/7 planted+ SE 30 inches. Picture: Note: I plan to get many more plants in the future to make the tank very nice for the gourami, along with some moss for the shrimp, and some more rocks and plants to aquascape the left side of the tank. Thanks for your help!