The stone as a decorative detail gives a particularly poignant picture of our aquarium, now if we choose a stone with sharp edges, darker colors we get a rough appearance of the aquarium, but on the contrary, if we choose a stone that is rounded with a slightly fairness then this is something different. No matter which type of stones we choose we should be aware that the important thing is that we should not mix the two types of stone, and if you decide for stone with sharp edges, then the other pieces should be the same or at least with similar colors and shapes.

Here I will propose some fish tank decorations you may like:

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  Exotic Environments Skull Mountain Aquarium Ornament, Small, 5-1/2-Inch by 6-Inch by 6-Inch

As with plants when setting the stone as a decorative detail you should locate a central focal point, in this case it will be a bigger stone and around it we can put a few small pieces, I stress again that this pieces of stone should only differ from the other pieces of the stones in the size of the other details (texture, color, shape). The next thing in choosing a stone that should pay particular attention to is the composition of the stone that we have decided to put in the aquarium. The stone that you choose to put in the aquarium can be put into a test aquarium at first in order to monitor water quality, it refers to the pH and dH. Another way to check whether the stone that we have chosen for our aquarium is suitable is to drip a few drops of vinegar on the surface, if the stone starts foaming that means that the stone is composed of large amounts of calcite,  and this stone is not suitable for our aquarium. Stones from the sea should be also avoided no matter how much they are interesting in shape or appearance, the stones that originated from the sea generally contain  higher percentage of limestone or in their cavities there are remains of shells or crabs which affects the quality of water. The similar case is with the limestone which was lately a common accessory in many aquariums; it also increases the hardness of the water. On the list of stones that are not suitable for an aquarium we can also add the marble. For aquariums we should choose stones that in their composition don’t have limestone or calcium but gravel or granite. So if you are not sure of the stone composition that you have chosen for the aquarium, you should add it in your ornamental aquarium until you have checked its composition.

In the rest of the text we will pay more attention to the tree as a decorative detail in the aquarium. The stores for aquarium equipment are selling pieces of woods among which most frequent are Mopan tree and Mangro tree, but you don’t have to go always to the stores in order to find an interesting tree, on the contrary you can find it in your environment all you need to do is to search a little bit more.

There is no right way to choose wood for your aquarium, essentially you need to pay attention to the size and type of wood, if you choose the piece of wood that is large or has on a lot of intertwined branches then this piece of wood will be your focal point in the tank while the plants you choose will be accompanying elements. The selection of the woods can be done in two ways: the first is to choose a branch and according to it to imagine an environment where the branch may best fit.  The second way is to create the environment you desire and then to start looking for the branch you have imagined.

You will agree that the first way is more convenient since with a little imagination you can always transform the branch you have in what you need, it primarily refers to the branch who you don’t need and you can remove it, also you can make a gap in it or with the help of fire change (darken) the very color of the wood.

No matter which type of wood you decide for the treatment i.e. the preparing of the wood before inserting it into the tank is the same. It consists of the following: clean the selected pieces of wood with a sharp knife or wire brush, remove the crust since there is the largest concentration of tannins.

Wash the tree with a strong jet of water and once again make sure you have removed all the rotten pieces of wood. If the wood color is too bright compared with that one you have imagined, you can get the desired shade by heating up the tree. The next step is to delude the tree in a pot large enough, here you have to pay attention to the fact that tree is completely submerged in water otherwise the parts that are outside the water may grow mouldy. In order to avoid this we need to delude the tree with some additional load until saturated with water. This process can take a few hours or several days or even a few months, in this process the wood will release tannin into the water and you will need to change the water occasionally. When you are sure that the wood imbibed enough water in it and can remain beneath the surface by itself, the wood should be placed in salt water. Placing the wood in salt water somehow means disinfection of the wood i.e. killing all the fungi and micro-organisms that have settled in the tree. At this stage of the preparation of the wood nothing else is recommended but table salt.

After all above mention you can place the wood in the aquarium, and if in spite of all this appears a white scum on the tree again this is mold. The mold itself has no detrimental impact on the residents in the tank unless some of the inhabitants of your aquarium have wounds; in this case the mold may appear on the diseased parts. Then you should remove the tree from the aquarium and repeat the process in boiling salted water. If the tree is steel releasing tannin in the water you don’t have to worry since the tannin is not a problem for the inhabitants of your aquarium.

Anyway the concentration of tannin in water will decrease over the time with the replacement of the water in the aquarium. But if you’re impatient and you still want to speed up the process of removing the tannin from the water in order to be clean and transparent as before placing the tree into the aquarium, you should add active carbon in filter and soon the water will be in its previous state but also it will remove harmful metals that may be contained in the wood, if any.

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