I AM AN IDIOT, I AM S/T/U/P/I/D!
Well I dose excel, prime, etc. with a 1ml syringe for my small tanks so I don't overdose. So I go on dosing and I guess I misread the bottle's or did the math wrong, IDK, but I've been dosing 0.1ml of flourish excel into my 10g! and 0.2ml into my 20g! Just had to show how anyone, no matter how long you've been in the hobby, can make a mistake!