[What type of guppie do I have]

I think its an endler, but I may be wrong.

[plants for 20 gallon long]

Since I just got a new 20 gallon long, I would love a plant that covers that entire back wall of the tank. Beginner friendly, any plants that would do the job?

[Hello, I am new to the forum!]

I just got a new 20 gallon long from the dollar per gallon sale at Petco and I don't know what to put in it. One of the fish that I know is going to be in it are corydoras. I really don't know what other fish would go great in it. This is my first time making a community tank. The only time I've kept fish were bettas lol. I hope anyone here could help me out.

[Betta fish eating corydora's food]

Alright! Maybe I fed them when my betta was still awake. I always see my betta with the corys, and it's like he uses them to find any food.

[Betta fish eating corydora's food]

I tried feeding them at night and when I checked on them 10 minutes later, my betta (Oscar) was there eating their food. If I try feeding them at the same time, Oscar will finish his food and then search for their food at the bottom and eventually take it.

[Show off your Betta!]

this is Oscar lol. I just got him, he has doesn't have the big fins yet

[Betta fish eating corydora's food]

Every time I try to feed my corys, my betta always comes down just to get their food. No matter what I do he always finds their food and eats it. I am worried he will be sick from eating too much and my corys not getting enough food.