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Originally Posted by Stormfish View Post
Another point is the benefit of natural CO2 over the liquid carbon supplements. The former is free, it just occurs naturally, and plants are better able to use it. The carbon supplements are chemicals that do kill some plants at normal dosage, and if overdosed will kill most plants and fish. While you are obviously not overdosing, my pint here is that putting any chemical that has this capability in a fish tank is not advisable. There may be some minor irritation to the fish that is far worse than any imaginary shortage of oxygen.
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]
Originally Posted by AbbeysDad View Post
An air pump, or airstone can help move water lower in oxygen from the bottom of the tank to the surface for better exchange,and also can help disperse heat.
Once read an interesting thread over at the Krib.com where test's were done with DO(dissolved oxygen) meter with, and without air stones, and measurement's of dissolved oxygen taken at bottom were much higher than same measurement without the added airstones.
Even powerheads created higher reading's for dissolved oxygen over tanks without such apparatus at the bottom of the tank.middle,and top.(maybe somthing to try ones self?)
For planted tank's,,I think there is enough oxygen produced during daylight hours to hold the fish over till morning when plant's once again begin producing O2 so long as tank is not too over stocked.
Just my two cent's.
The most important medication in your fish medicine cabinet is.. Clean water.
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