@lija
i use fish cave and rock for now,but il input more stuff in it soon...thx for the link, very infromative,however i have one more question before im offline,why is my pacman scared?whenever i touch it it runs away..why is this happening?in youtubes,pacs would bite or scream when touch,etc..?btw i dont think my tank is to big since in the wild they have the whole wide world around them.