This clown who calls himself a professional is anything but that. He came over my house to do simple tank cleaning and maintenance. Almost from the getgo there were huge issues. My fish started to die within 2 days after he left!. I had these for over three years'. I called him numerous times with no calls back and left multiple messages/. I finally went with another company, . They tested my water and found huge amounts of copper in the tank'. I basically had to throw it out and get another tank and start over;. This costed me a ton of money". Do not use these guys unless you want dead fish and coral.