Methylene blue disposal - The Planted Tank Forum
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post #1 of 2 (permalink) Old 10-09-2012, 04:59 PM Thread Starter
Planted Tank Obsessed
Join Date: Aug 2011
Location: Northwest Kansas
Posts: 307
Methylene blue disposal

After you have given a fish a bath in methylene blue, what do you do with the methylene blue water? WE have a septic system. Is it safe to put it down the drain?
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post #2 of 2 (permalink) Old 10-09-2012, 07:37 PM
Algae Grower
Join Date: Sep 2012
Location: Portland, Oregon
Posts: 71
If your county/municipality has a hazmat dump, use that instead. (Most of them have a place to dump motor oil)

There's a slight chance that it would kill your septic tank's ability to break down organic solids through anaerobic digestion, but it's more likely to leach into your septic field's ground water and eventually wind up in someone's well.

Last edited by flc; 10-09-2012 at 07:38 PM. Reason: grammar
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