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The following article was published in our article directory on November 1, 2010.
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Why Corals in the Fish Reef Aquariums Change Colors

Article Category: Pets

Author Name: Kellie

Some corals in fish reef aquariums change colors and they absolutely do not look good. If you have just bought an aquarium and you don t want this to happen to your corals, this article will give you an idea of what causes the corals to fade.

The first thing you have to watch out for are the parasites. There are some parasitic organisms which love to have corals for snacks. Some of them are certain types of snails, fish, spiders, and other sea creatures you may have included in your tank.

The best way to go about this is by observing the corals at night using a red light. Whichever creature seems to be bothering your corals, that might just be the problem.

The next thing you ought to check is your flow rate. Most stony corals like high rate flow. The flow is what lets them to feed and breathe so it has to be conducive for their needs. If it s not, then they express their disagreement by changing colors.

Thirdly, corals in fish reef aquariums also fade or change color because their water parameters are off. To check on this, gauge the alkalinity and ph levels of the water. Oftentimes, these are the common problems in the water parameters of marine tanks; although you should not take the nitrates and phosphates levels for granted. If the problem is in the latter two, you may observe some blooming of algae.

Fourthly and perhaps most crucially you ought to check your lighting. Your lights may either be too strong or too old. If your lights are new, you should try raising them a few inches higher from where you first set them up. If this is unworkable due to mechanical reasons, you should consider moving your corals instead. Put them to a lower level.

However, if your lights are rather old, then you should consider purchasing new ones. Old bulbs can decrease their spectrum and strength, and this may affect your corals.

Also, you should know that corals are very sensitive to UV light. This destroys their DNA and RNA. This is actually the reason why they make color pigments in their zooxanthellae cells. The color pigments are their protection from the UV light.

In real-life set-up, the ocean filters the UV rays. Logically, the deeper you go, the lesser UV rays can penetrate. Since the corals produce the color pigments as their way of protecting themselves, you will notice that the corals found in the shallower part of the ocean are more colorful than the ones beneath. Anyway, the point is that you have to consider the types of lights you are using and whether they are high in UV light. If they are, you d better use them over aquarium canopies as the canopies would filter most of their harmful rays.

These are the common reasons why corals in fish reef aquariums change colors. Beware of them so you ll know why and what to do when it happens to you.

Keywords: Aquarium fish reef, reef aquariums, fish reef aquariums, reef aquarium tips,

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