I bought a shringe and used 1 cc until I started to see ammonia and then cut back to 1/2 cc.
Then I stopped adding once I was showing nitrites and nitrates and just added fish food (no fish) until all went to zero and a small amount of nitrates.
Then I stopped adding once I was showing nitrites and nitrates and just added fish food (no fish) until all went to zero and a small amount of nitrates.