Fishman,
Being the knowledgeable pond boss contributor that you are... I'm sure you read the fine print in the privacy statment that states, "any commercial revenue derived from postings on Pond Boss forums are subject to a 10% brokerage fee, to be remitted to Pond Boss World Headquarters in Whitesboro, TX". So you if you haven't, you might want to requote that O2 meter to cover unforseen taxes.
