Plant anchors - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 13 Old 12-14-2009, 03:05 PM Thread Starter
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OK so all anchors have been removed. I hope the roost have time to "take" before the plants decide to float away... luckily pretty mush all my plants are good floating plants as well!

*gamer* your last post convinced me... made me remember seeing a rotten stem under one of the anchors one time...
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post #12 of 13 Old 12-14-2009, 04:05 PM
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Heavy metals are toxic to all organisms, whether they are required micro-nutrients (copper, iron, manganese, zinc, nickel) or pollutants (mercury, lead, etc.). Studies determined that with respect to fish, lead was third highest in toxicity, mercury and copper being higher, and second highest (to mercury) for plants. Brook trout showed juvenile deformity with levels of lead beyond 0.058 ppm. It is known that some metals will bind to organic matter and carbonate ions and becomes less toxic, and other fasctors such as water hardness and pH also have an impact on toxicity.

Whatever the numbers, lead clearly has a toxic effect on plants and fish, and therefore should be kept out of the aquarium.

If the substrate will not hold down a plant, the depth is insufficient for a planted aquarium. Increasing the substrate is easy.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #13 of 13 Old 12-14-2009, 05:43 PM Thread Starter
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Thanks Byron! I wasn't sure why it made sense to remove it... now I know.
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