02-15-2013, 01:04 AM
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Originally Posted by Byron
I would not put Purigen in a planted tank. I know that Seachem says it has "minimal effect" on trace elements, but any effect is detrimental. It also messes with ammonia, which plants need a lot of.
I agree carbon also messes with plants; it will adsorb (adsorb, not absorb here) organics and DOC (dissolved organic carbon) which is essential for sufficient carbon for plants in natural planted tanks.
Mopani is a bit worse for tannins, but they will dissipate. Regular water changes will slowly remove the discolouration.
As a general observation, many forget (or don't realize) that live plants are the only filtration needed in an aquarium. They are nature's filters, on land or in the water. To let them "do their thing" and do it best, we shouldn't interfere.
so i dont need a filter in my tank?