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im doing a fishless cycle of a new 20 high gallon tank and i used dr.tims ammonia and i think i put too much ammonia in cause the directions for it are weird. it said 4 drops per gallon which seemed like a lot to me but thats what i did and then i read that you should only do 2 drops per gallon so i did a 25% water change and added more bacteria and then more again a few days later when i tested for ammonia hoping it would help and it hasn't, what should i do? do i really need to start my cycle over? :/ its only been 2 weeks but im getting no results, ammonia is still really high and my nitrite and nitrates are still at zero, HELP!!!