I have gotten lost on conversions on how much I should use. I bought a 16 oz. 454 gram box of aquarium salt. i originally started to dose using the instructions on the box/one table spoon per 5 gal. i am figuring 50 gals but then read more is needed. i doubled the amount which i believe brought me to 20 tablespoons which i think is 60 teaspoons. the next day i added some more before work in a hurry and i think it was 10 more teaspoons. i want to add more tonite but i want to be sure i am not over dosing or under dosing. my question is with this size box of salt if i add the whole thing which would be where i'm at tonite w/ this dose is this too much? or is it too little. because i sort of lost track of exactly how much i put in i'm wondering if anyone knows off hand if 454 grams or16ozs is about right or too much/too little for 50 gals. i have what is about 10 more teaspoons left should i put it in and will i need even more tommorow