Ready-made, nutrient-rich additives are widely available and usually designed as a main substrate, or to be mixed with a small-grade inert substrate. These substrates are high in many of the nutrients required by plants and not commonly available through other sources (tap water, natural processes, etc.). In an established aquarium, most of these nutrients are released slowly over long periods of time, making nutrient-rich substrates an ideal long-term fertilizing solution. Most nutrient-rich substrates will begin to run out of nutrients after only two to three years. However, if you carry out regular small water changes and allow some organic waste to build up in the substrate, it will naturally become a "sink" for trapping and slowly releasing nutrients indefinitely. Regular small water changes and liquid iron fertilization should be enough to continually recharge an established substrate incorporating a nutrient-rich additive.
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The word aquarium originates from the ancient Latin language, aqua meaning water and the suffix rium meaning place or building. Aquariums are beautiful and look good anywhere! Home aquariums are becoming more and more popular, it is a hobby that many people are flocking too and fish shops are on the rise. Fish are generally easy to keep although do they need quite a bit of attention. Puppies and kittens were the typical pet but now fish are becoming more and more frequent in house holds. In recent years fish shops have noticed a great increase in the rise of people wanting to purchase aquariums and fish, the boom has been great for local shops as the fish industry hasnt been such a great industry before now.