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Re: Aquatic Plants Digest V3 #533
- To: Aquatic-Plants at actwin_com
- Subject: Re: Aquatic Plants Digest V3 #533
- From: dozenne at 10fold_com (David Ozenne)
- Date: Thu, 24 Sep 1998 09:44:50 -0700
- In-reply-to: <199809231948.PAA28841 at acme_actwin.com> (Aquatic-Plants-Owner at actwin_com)
StormNiel at aol_com wrote:
> I am experiencing a blue-green algae explosion in my tank. It's a fairly newly
> established 90 gal planted with mostly swords and sags. I have CO2 injection
> and 350 watts of MH lighting. Plants have been growing great.
> From prior postings in the archive, it looked like some were of the opinion
> that cyanobacteria flourish when the tank is nitrate limited which my tank is.
> I have not been fertilizing yet. Should I start using PMDD in order to provide
> nitrate and curb the growth of the cyanobacteria?
> Any other suggestions on controlling the cyanobacteria outbreak.?
I had really bad BGA for a while. I was doing daily removal, and it
still covered everything. Finally I started adding KNO3 (stump
remover!) to get my nitrate and potassium levels up. The BGA growth
slowed radically, but it was still everywhere. So I used erythromycin
to eradicate it. The treatment was very effective, and with the low
nitrate problem fixed, the BGA did not come back.