I don't think Aquarius would care about the shrimp. He's a very docile boy, never flares at the frog, never really flared at Nix when they are sitting side by side in cups during tank cleaning, and never even flared at Hollow the rescue boy. He's just chill.
He wasn't a baby when I got him, I assume he wasn't 6 months yet because he was so small but hardly a fry. That's him the day I got him in my avatar. But I agree. I rescued Nix as a baby fry, nothing but a tiny grey fish. Now she's a big beautiful girl with such rich color and sadly larger than most of the girls I see in petshops. She's already an inch long and only 3 months. All the females I see are hardly at her body length and half her girth size. Nix is such a big healthy girl. Good thing i took her home when I did, she was knocking on deaths door the first day and living in ammonia at 4.0