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Saturday, August 10, 2013

Fish's Use of Our Life

High levels can cause severe stress, whereas slightly elevated levels can contribute to chronic stress. Temperature fluctuations are a much under appreciated stressor of fish. Most tropical freshwater and marine fish do not tolerate temperature changes very well. Many tanks that are not set up properly will have over the recommended maximum of one degree of temperature fluctuation in a 24-hour period due to room temperature, lights, and equipment. The daily fluctuations will create chronic stress as will having too low or too high of a temperature in the tank for the species of fish present.

Many fish adapt to long-term changes, but there are limits. pH levels that change abruptly cause acute stress and continually elevated or lowered pH levels can cause chronic stress. pH changes of more than 1.5 points below or above recommended levels are going to have a negative effect over time and should never be considered acceptable.

Their bodies work hard to maintain the osmotic gradient between themselves and their environment. Wild fish live within very specific salinity levels (levels of salt in the water). If their environmental salinity is not specific to their needs and is not held at a steady level, they have to work harder to maintain their osmotic gradient, which generates chronic stress.

Oxygen levels that are below recommended levels can cause fish to 'breathe' faster than optimum and this can result in chronic stress. Obviously, very low oxygen levels can lead to severe short-term stress and death.

There should be two suitable hiding spaces for every fish in the tank, otherwise, there are going to be fish that are stressed and bullied. Remember that unlike their environment in the wild, these fish are confined and cannot get away from aggressors. Aggression is a very real problem in many tanks that leads to many injuries, infections, and death. For more information www.indomunch.com [http://www.indomunch.com]

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