01-31-2010, 06:21 PM
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I did a search on this because I was curious. This is what I found in an article: "You can tell if aquarium plants are photosynthesizing by observing the plants. When small bubbles form on the leaves of plants it is a sign that photosynthesis is occurring. Many hobbyists refer to this as pearling." That sentence may not completely answer your question of why it is doing it now or in more excess than what you have experienced before. Here is a link to the article: Live aquarium plants, watergardens, and discount aquarium supplies.
One reason why I was curious is because I was searching something the other day and came upon a site that had a YouTube video. I then was going through all kinds of beautiful planted tank videos (big time competitors or something) and one video was showing air bubbles being released off of the plants. Everyone was commenting on this and asked him/her how he/she achieved this.
To me it does not sound like a bad thing, unless I am missing something...unless maybe there was too much oxygen being put into the tank other than what the plants are releasing which I know that you do not have. But, like you ask, why are they doing this more so right now?
Last edited by HollyinWA; 01-31-2010 at 06:26 PM..