2 - linky
https://www.facebook.com/DiscusLM
http://pmdd.mrp-cz.com/index.php?stranky=nemoci
http://www.akvastranky.com/lazne.htm
http://aquarium.wz.cz/stranky/krmeni.htm
http://www.simplydiscus.com/library/disease_medications/medicine_cabinet/formalin.shtml
http://www.tropicalfish.it/discus/html/parte_2.htm
http://maniakva.sweb.cz/chemie2.htm
http://maniakva.sweb.cz/raselina.htm
http://www.aqua-fish.net/show.php?h=chemizmusvodyvakvariu