Instructions and Guidelines
To Treat Tap Water: Add 5 ml (1 capful) per 20 US-gallons of tap water to remove chloramines and ammonia; used in this fashion, Erāse-Cl will treat up to 6 ppm chlorine, 3 ppm chloramines, or 1 ppm ammonia.
To Treat Aquarium Water: Determine ammonia concentration in aquarium using an accurate ammonia test kit with ammonia salicylate reagent (see comments below). Add 5 ml (1 capful) per 20 US-gallons of water in overall system per 1 ppm of ammonia measured on test kit. Allow 10 minutes to elapse, then re-test ammonia concentration in aquarium and repeat treatment instructions if necessary.
Testing for Ammonia: When using this product, be sure to measure ammonia with a test kit featuring ammonia salicylate reagent rather than Nessler’s reagent; Nessler’s reagent will give an incorrect positive reading of ammonia due to the manner in which the reagent interacts with the active components of Erāse-Cl.
To Treat Free Iodine Overdose: If you suspect that iodine has been overdosed in an aquarium (such as due to accidental misuse), add 10 ml (2 capfuls) Erāse-Cl per 20 US-gallons in an area of energetic water flow; doing so will neutralize free iodine (i.e. that which is not in an ionic form, such as iodide or iodate, or in a bound form).
Observe aquarium livestock for no less than 15 minutes thereafter. Erāse-Cl binds iodine at a rate that is limited only by the response time and degree of water circulation in the aquarium; the faster the product is added after an overdose and the more rapid the water circulation in the system, the better the product will perform. No claim is made that this product will prevent damage or reverse that which has already been suffered by livestock or biological filtration in any event. This product is particularly useful for hobbyists who are experimenting with Lugol’s Solution and other strong iodine sources in an attempt to benefit aquarium inhabitants. Do not exceed a total iodine concentration of 0.10 ppm in a marine aquarium at any time.
Caution: Keep out of reach of children. Not for human consumption. Contact poison control center if ingested.