Thanks guys. I will try to replug the AC filter after a few more hours. And if not, then I'll pick up a replacement pump @ petsmart most likely. Uh, I can't believe I forgot about just replacing the pump. Haha.
On another note, during my PWC today, I inspected the 5 gallon sponge filter. Some parts are loose. I can't describe it to you, but let's just say, it's gotten old and I may need to replace it. It's JEBO tank, which makes it hard to replace. The filter works currently, but it's quite noisy. If I'm right, it'll get quieter in a few hours.
As of right now, I halted all feedings and dosings and left the tank with lights on (10 gallon).