Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - General Discussion
Click Here to Login

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 11-28-2008, 08:51 AM   #1
Aquarium Advice Newbie
Join Date: Nov 2008
Location: Pickering, Ontario
Posts: 1
Need some advice - Black Silicone Turning Yellow

Hi Everyone,

I'm hoping someone can help me out with a possible problem I'm having with my aquarium. I've been searching through the forums looking for someone else with this issue but so far haven't come across it. Any help would be greatly appreciated.

I purchased a used 75 gallon aquarium three years ago but I believe the tank is around 5-6 years old. The person I bought it from said it still has the same silicone it was originally sold with. The silicone was completely black when I bought the tank and stayed black until the past 5-6 months when it started turning yellow along the inside bottom of the tank and about 3 inches up the side from the bottom. Some parts of the silicone are almost clear now. I haven't noticed any of the fish picking at it and it doesn't seem to be lifting but I'm still concerned.

Is it possible that my substrate could be changing the color? I have a thick layer of white silica sand, which has been in the tank for the past two years, and layer of black sand purchased at a local pet store, which was added over the past year. The reason I question the sand causing issues is that only the silicone touched by the sand is changing colors. The rest is still black. However, I use the same combination of substrate in another tank with clear silicone and haven't noticed any issues.

I keep an Oscar, Pleco, and a Convict in the tank.

I'm wondering if this is just something that happens to black silicone over time or if I should be really worried about leaks or the tank bursting. It's in a room near a lot of electronics that could be easily ruined. I've been considering purchasing a new tank just so I don't have to worry about it but if it's not cause for concern I could definitely use the money elsewhere.

Again, any ideas would really be appreciated.



Tetsuro999 is offline   Reply With Quote


Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Pleco Turning Yellow? PSA Freshwater & Brackish - Unhealthy Fish 1 01-18-2009 09:42 AM
Plant turning black... Lonewolfblue Freshwater & Brackish - Planted Tanks 10 03-27-2006 08:29 AM
Black silicone not matching Vettin2nite Saltwater Reef Aquaria 2 12-07-2005 05:54 PM
Goldfish turning Yellow??? Lance M. Freshwater & Brackish - General Discussion 5 04-24-2005 10:00 AM
Plants turning yellow eggie100 Freshwater & Brackish - Planted Tanks 5 08-13-2004 11:37 AM

» Photo Contest Winners

All times are GMT -4. The time now is 06:32 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.