Originally Posted by Whitey
Sorry, but I feel bad for your Dog Face.
You need to read before you buy. A Dog Face Puffer should never be in a 30 gallon tank, so to answer your question, you should upgrade tomorrow.
I get the impression you're young, which means two things.
1: You are learning and will make mistakes like we all have.
And
2: You most likely do not have the funds to upgrade like you say you'd like to.
You may see a big fish in a small tank is the LFS but that does not mean it can survive in your small tank.
I would honestly return the Puffer as soon as you can, and get a credit towards something else. No matter how much you like the fish, you'll feel worse watching it become stressed, covered in ich and waste away, and I assure you this is what will happen.
I am not to sure about getting smothered in ich and wasting away. But I do no in time it will outgrow your tank and become really stressed and torment your tankmates. When is your bd? Lol. But really, upgrade as soon as possible or return the puffer.