Q. I always use airstones to make sure my fish get enough oxygen to breathe. The pet store told me I should not use airstones if I add plants to my aquarium.
Connect the Viagrow Air-Stones to an air pump with tubing to create scores of tiny bubbles adding much-needed oxygen to the water in aquariums, hydroponic and aquaponic growing systems . The larger surface area of the Air-Stone allows for the production of a greater number of these bubbles therefore increasing the surface area of the oxygen available to your fish or plants. As the bubbles aerate the water, they also help circulate hydroponic nutrients, invigorating the roots of plants and boosting healthy growth.
KORDON MIST AIR AQUARIUM AIRSTONES are the highest quality aerators available for aquarium and pond keeping. They are for both general and specialized use by the discriminating aquarist who wants premium quality, performance that excels all others, and lifetime service.
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The typical airstone is a porous blue stone (ceramic), with a plastic nozzle which takes 6mm diameter air hose. However they are also available in many different sizes and colours to suit the aquarium décor.Some aquarists place a submerged in the aquarium with an airstone underneath. The action of the causes the air bubbles to be broken up into millions of tiny bubbles which greatly increases the surface area and so increases the rate of oxygen diffusing into the water. in the air actually takes a long time (typically 90 seconds for an average sized bubble) to dissolve into the water via an airstone. It is the action of rising bubbles which causes water movement from the bottom of the aquarium, where oxygen levels will be lower, to the surface where the oxygen from the air can diffuse. The bubbling water surface actually has a larger surface area so allowing more oxygen to diffuse over time.There are a number of ways to help counter this, and that’s where aeration devices come in. There are two basic types: Those that infuse oxygen directly into the water (such as airstones and decorative bubble walls) and—even more effective—those that expand the surface area of the water to give the oxygen more entry points. That’s what I was doing when I sprayed my pond with the hose, for instance, because each droplet of water picked up a lot of oxygen as it cascaded through the air; that’s also part of the point of waterfalls and fountains. And in aquariums, certain types of filters help aerate the water as well. These include hang-on-back filters and trickle filters.No big surprise there; airstones—whether wood, ceramic, or actual stone—are full of pores that over time tend to get clogged with mineral deposits and algae. And while I’ve heard of people recycling them through a multi-step process that includes boiling them in vinegar and water, scrubbing them, and forcing air back through them, my feeling about that is: why bother? When compared to the many other things that need periodic replacement in aquaria, a 50-cent airstone is hardly a big deal. Let me start with two myths and a rule of thumb. Myth: Airstones are needed to add oxygen to an aquarium. Myth: Airstones should not be used on a because they remove CO.Airstones are unlikely to hurt a slow-growing garden with no added carbon dioxide, but they are not an especially useful way to add oxygen, anyway. Airstones drive off any CO in the water above the level that the water would have from normal exposure to air. So, if you add CO and use an airstone, you can drive off all the added COWhen I was a kid (around the time steel was invented), and folks had figured out how to take asphalt, putty, glass and steel, and make an aquarium that only sometimes rusted or gave you a jolt of electricity when you touched it, stores always sold you airstones so the fish could breathe.We have come a long way since then. However, a new version of the airstone myth has arisen: that aquatic gardens should have airstones bubbling away at night, so the fish can breathe. A corollary to this is that nighttime airstones are needed so that the can breathe. are a relatively cheap, but rather inefficient, way to oxygenate the water. A small, half-decent water pump will serve the purpose better. That’s notwithstanding the fact that a well-planted aquarium will be saturated with oxygen when the lights go out, leaving plenty of O to last fish and aquatic plants through the night.Opposing the “airstoners” are those who argue that airstones remove CO, so you shouldn’t use them. Actually, an airstone (or water pump, for that matter) will tend to make the water have the maximum amount of CO it can absorb from the air, which is about 4 or 5 parts per million (ppm). If your aquarium has less CO than that, an airstone will add CO. If it has more, it will tend to remove CO down to 4 to 5 ppm. Actually, the concentration can be slightly higher, due to CO coming from fish respiration.If there is soil under the substrate, anaerobic bacterial activity can generate (among other things) and raise its level slightly above 4 to 5 ppm. However, the difference between 3 and 5 or 7 ppm is small in absolute terms because we are talking about very small amounts of CO. So, as far as CO is concerned (in an aquarium without added CO), an airstone is probably not going to cause any harm and might even help — but only a tiny bit.