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**John P.** · 09-04-2006, 07:23 AM

I've found this works to lessen GDA

1) Let the GDA build up,
2) Scrape the glass,
3) Do a large water change
4) Stop EI dosing/add only micros and potassium
5) Repeat 2, 3, & 4.

09-04-2006, 07:23 AM	#76 (permalink)
John P. Member of SCAPE Join Date: Nov 2004 Location: Laguna Beach, CA Posts: 1,000 iTrader Ratings: 13 iTrader Positive Rating: 100% Plant Points: 16035	I've found this works to lessen GDA 1) Let the GDA build up, 2) Scrape the glass, 3) Do a large water change 4) Stop EI dosing/add only micros and potassium 5) Repeat 2, 3, & 4.