"Mark Baldwin" wrote in message
...
If you don't want algae then you need to monitor your tank parameters,
especially phospate and nitrate.

Read about the redfield ratio...
http://www.xs4all.nl/~buddendo/aquar...dfield_eng.htm

You can estimate CO2 based on pH and KH...

http://www.thekrib.com/Plants/CO2/kh-ph-co2-chart.html

If you tap water has lots of nitrate then either use RO water or use a
nitrate sponge such as NitraZorb
http://www.aquariumpharm.com/en_gb/p...ame=Filtration

This stuff will soak up pretty much all your nitrate which won't do your
plants any good but you can use it 24hours before a water change to reduce
nitrate to zero, then when you add your new water you will add nitrate but
it will be diluted into the existing tank water.
=================
Thanks for the info. I was hoping I wouldn't need to spend a small fortune
for test kits, fertilizers and other paraphernalia just to grow some nice
plants in these display tanks..........
--
Koi-Lo....
Aquariums since 1952.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
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