fertilizing and algae control of outdoor Aponogeton tank - The Planted Tank Forum
 
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post #1 of 1 (permalink) Old 08-21-2016, 10:44 PM Thread Starter
Algae Grower
 
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fertilizing and algae control of outdoor Aponogeton tank

Dear fellow hobbyists,

I live in Southwest Florida and have an experimental outdoor Aponogeton tank (mostly lace plants in dishes with rich substrate) under a nursery screen, topping off nicely with rainwater in rainy season. I've been using Seachem liquid Potassium, Advance, Flourish, Iron and an experimental excess of diffused Co2 from my regulator tank (no fish). Since setting up months ago, I've controlled the algae nicely by using weekly additions of Algaefix - no algae on leaves at all, very clear water with no water changes, and excess snails don't seem to hurt leaves either. Can Algaefix (or barley straw extract) possibly interfere with absorption of dosed nutrients and harm or slow plant growth? Should I be using phosphate and nitrogen as well? Also, should I switch to less expensive dry fertilizers, and which brand? Finally, though I've said heck with water changes, is there a risk of chemical buildup (salts, compounds etc) in the water column? I am hoping to germinate seeds and grow the bulbs.

Thanks,
Jim
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