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[APD] Re: clay substrate & thread algae

Daniel Larsson claims:
> Clay-fertilized newly setup aquariums often get severe thread-algae,
> which slowly disappear as the substrate get iron depleted and the
> convection
> can't shoot up it's poorly balanced nutrients. If it's due to the large
> amount
> of iron or the fact that it's just poorly balanced for aquatic plants

I completely disagree with the preceding claim.

You will only have thread algae in an aquarium if you put plants, fish or
water into the aquarium which have been exposed to thread algae. It grows
whenever conditions are favourable for aquatic plant growth.

It is an urban myth that you can control thread algae by nutrient dosing.
You can certainly exacerbate an algae problem with excessive phosphates &

Steve P

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