Busgrw Busgrw
  • Just popping in
  • Just popping in
  • Joined: 3/2 19:58
  • Group: Registered Users
  • Posts: 1
  • Posted on: 3/2 20:06
Brown Stains in Tank #1
Hi all,

First time posting here and looking for help.

I recently (2 weeks ago) bought 3 goldfish for my kids and there seems to be some form of brown discolouration or staining on the stones and the filter of the tank. Please see attached picture of stones.

Any thoughts on what this might be and how to resolve?

Thanks in advance.


Attach file:

jpeg  23802_601b02af2bea0.jpeg (609.38 KB)
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Fishlady Fishlady
  • Tropical Moderator
  • Tropical Moderator
  • Joined: 6/7/2010 19:26
  • From Worcestershire
  • Group: Caresheets Moderators FK Supporter Registered Users Image Admin Advisers
  • Posts: 13725
  • Posted on: 3/2 21:05
Re: Brown Stains in Tank #2
If this is a new set up it will be diatom algae. Common in new tanks and easy to clean off. It will eventually stop appearing.