Brown Spot

[stumpy57]

can any one tell me why i have got brown spot on the inside of my glass i have onley had my tank runing for to weeks and the sand is starting to look dirty i am usein a 15 g tank with all filters and heaters

 

[WILDER]

Its normal for a new tanks to get the brown spots on the glass.
Just wipe them off with a glass magnet.
Get you some info.
http/www.thetropicaltank.co.uk/algae.htm

 

[luque]

i ahve the same, on my tank that finished it cycle today ,

and i have the same stuff, i hust introduced 3 ottos, and there goin mad for it!!