Brown line around substrate line - Tropical Fish Keeping - Aquarium fish care and resources
LinkBack Thread Tools
post #1 of 4 Old 08-07-2011, 11:28 PM Thread Starter
Brown line around substrate line

In my 5g Betta tank a brown line has appeared around the substrate line. Any idea what this could be?
ladayen is offline  
Sponsored Links
post #2 of 4 Old 08-07-2011, 11:33 PM
Andarial's Avatar
I would think it is either a build up of waste, or algae. I'm guessing it's some algae I get it sometimes too, it usually goes away with either some scrubbing or just a good cleaning.

40 gallon with 13 hermit crabs- 11 PPs, 1 E, 1 Straw
25 Gallon
~2 Dwarf Puffer- Sidney and Cairo, 4 Amano Shrimp, 4 Blue Pearl Shrimp, 4 Yellow Cherry Shrimp, 2 Mandarin Cherry Shrimp, Too many RCS, 4 Crystal Red Shrimp, 4- Otos

5 gallon
~White/Teal/Red Betta- Phantom, Snails

25 Gallon
~Leopard Gecko- Desert Rose
Andarial is offline  
post #3 of 4 Old 08-08-2011, 12:13 AM Thread Starter
just checked parameters and they were perfect, so I dont see it being waste build up. I'll try wiping it tomorrow and see what happens.
ladayen is offline  
post #4 of 4 Old 08-08-2011, 10:35 AM
Byron's Avatar
Do you mean above the substrate, or just below the top of the substrate?

The latter is natural, diatoms or something very similar; the same thing gets in filter hoses sometimes. If you push the substrate back this can easily be scraped off, but I never bother.

If you mean above the substrate, it is algae and can be removed with a scraper. I periodically use a hard scraper along the front and push it just down to the substrate, being careful not to pick up any grains of sand or gravel (which is very easily done) which will then scratch the glass.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Brown 'stains' on aquariums at the water line redchigh Beginner Freshwater Aquarium 1 06-02-2011 07:14 PM
In-line heater love_my_fish Freshwater Aquarium Equipment 6 08-24-2009 01:26 PM
Okay, new line-up Zule Freshwater and Tropical Fish 7 02-08-2008 02:24 PM
Six-Line Wrasse Marine1 Saltwater Fish 2 03-30-2007 09:19 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome