12-31-2010, 05:38 PM
Join Date: Mar 2008
Location: Seattle, WA
iTrader Positive Rating: 100%
| | Re: glutaraldehyde instead of excel
Cidex or Metracide both contain Glutaraldehyde and can be used as a substitute to Excel but do not use it if it has had the "additive" bottle mixed with it.
Per the MSDS for Cidrex is 2.55% Glutaraldehyde. Seachem Excel is 1.5% Glutaraldehyde. You don't have to dilute the Cidrex, just add less. For example instead of 5ml of Excel per 10 gallons for the Initial dose, use 3 ml of Cidex per 10 gallons. For the Daily dose us 3 ml Cidex per 50 gallons instead of 5 ml of Excel per 50 gallons.