Idk.. My husband knows the sizes and everything. But yes we are going to upgrade to a big tank. Because I have grown fond of these triggers. And this little puffer.
So I took the fish in and they said definitely ich. Plus she had a small hole on her head and he said some name I can't pronounce. So they put her in a hospital tank and ordering us a new fish. He told us to keep an eye on our others not to treat it yet. We did almost a 50% water change too. Thanks for everyone's help