u/Confident-Knee-1768

I can’t upgrade anymore and he needs goldfish friends.
Someone with a pond preferably. His name is Bill.
I’m in Lakewood ranch Florida

Just saw this in my 5 gallon shrimp tank. Along with tiny little worm like things.
Google didn’t help much

I am moving my son’s county fair goldfish “Bill” to a 40/50 gallon tank from his current 20 gallon. Please don’t come at me, I’ve been researching this heavily and had NO idea.
I have plants in the tank now but my god this fish is non stop munching on everything! Ate all the shrimp, most the plants, he doesn’t stop!
My question is- what plants can I get for the new tank that will survive this hungry hungry hippo of a fish?

I added some pics of a few of the plants I have that haven’t died.