An estimated 150,000 people in the United States are diagnosed with Spinocerebellar Ataxia. SCA's are the largest group of this hereditary, progressive, degenerative and often fatal neurodegenerative disorder. There is no known effective treatment or cure.Spinocerebellar Ataxia can affect anyone of any age.pinocerebellar ataxia (SCA) is one of a group of genetic disorders characterized by slowly progressive incoordination of gait and is often associated with poor coordination of hands, speech, and eye movements.
A: As a general guideline, a monthly 25% water change is recommended. However, smaller, more frequent water changes (15-20% every 1-2 weeks) are preferable for heavily stocked aquariums or aquariums with large fish. Routine water changes have always been a basic aspect of aquarium maintenance.
However, if you choose the wrong kind of rock, you may be risking the health of your aquarium. If you just pick out a random rock in your backyard, there is a high chance that they alter the water parameters of your aquarium. Some rocks can change the pH and hardness level of the water. If you try to maintain a constant pH on your water, you will find that some rocks can change it dramatically. Another thing that you need to watch out for is the growth for bacteria. Some rocks may harbor a host of bacteria which can easily thrive inside an aquarium.