Go to the pet department of your local department store or to your local pet shop and look for pH Down and pH Up. These are used to adjust the pH in aquaria and only require small amounts to do the job. I used these to adjust the pH of my very hard water to be a little on the acidic side to help slow down the mineral buildup on the roots of my mounted orchids. They will probably have pH indicator solutions nearby as well so you can adjust the pH with a pretty good degree of accuracy. John jford@runet.edu --------------------------------------------------------------------- To sign-off this list, send email to majordomo@mallorn.com with the message text UNSUBSCRIBE PERENNIALS