Almost Chickened Out - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 12-18-2014, 11:41 PM Thread Starter
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Almost Chickened Out

I purchased a 90 gallon tank off craigslist a while ago and it was not the best deal I've ever made. But, as a learning experience, it's been great. Anyway, I removed the old, failing silicone and resealed it. I actually did a pretty decent job for a first time but I can say it's not quite as easy as it looks on youtube! I only scuzzed one spot so I don't feel too bad about it. After letting the new silicone cure for 48 hours I found that I was almost too darn chicken to put water in it, though. Finally, I sucked it up and filled it with water and, yippeeeeee! No leaks. Now it's on to building and planting - the fun stuff!
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post #2 of 7 (permalink) Old 12-19-2014, 12:56 AM
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Nice job! On my first silicone job it took me three tries. I was to anxious to fill with water. The build is my favorite part. Have fun.....
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post #3 of 7 (permalink) Old 12-19-2014, 05:19 AM
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Did you use masking tape? It makes a cleaner job. More time consuming though. I don't think anyone has gotten it perfect their first time. I didn't. I didn't like some of the seams so I let it dry overnight so that I could peel up the silicone a little easier. Retaped it and resealed it. I nailed it the second time though. It just takes practice. If a craigslisting tank had perfect glass but the seams were shot, I'd take it as well. The seams can be redone. The plus to that is that you will know the exact conditions of the silicone if you do it. Most people will sell leaky tanks or bad silicone tanks much cheaper because they don't want to deal with it.

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post #4 of 7 (permalink) Old 12-19-2014, 02:44 PM
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If you do it again start on the bottom because there good chance nobody will see those joints and it a good place to practice. But congratulation on the nerve to try. I was in the same situation with 110 gallon bought used.
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post #5 of 7 (permalink) Old 12-19-2014, 03:06 PM
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How do you tell if silicone is failing?
My 60 gallon is an old tank. It's only spent the last 2-3 years as an aquarium. Before it held a tank. But I get nervous about it.


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post #6 of 7 (permalink) Old 12-19-2014, 09:33 PM
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Quote:
Originally Posted by Sammie1 View Post
How do you tell if silicone is failing?
My 60 gallon is an old tank. It's only spent the last 2-3 years as an aquarium. Before it held a tank. But I get nervous about it.
One is the obvious. Fill it and check for leaks. Otherwise when the tank is empty just look for wear and tear. Visit a LFS and observe the silicone job. Its a bead of fairly fresh clear silicone. Looks like harden Vaseline by eye. Old silicone won't look as fresh. Typically silicone will last for many years but a day will come when it can't take anymore. My 55g that I had lasted about 11-12 years on the original factory silicone job before I had to reseal it. Each tank will be different though.

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post #7 of 7 (permalink) Old 12-20-2014, 03:41 AM Thread Starter
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Quote:
Originally Posted by Sammie1 View Post
How do you tell if silicone is failing?
My 60 gallon is an old tank. It's only spent the last 2-3 years as an aquarium. Before it held a tank. But I get nervous about it.
I could tell that the silicone was loose on some of the joints and a much lighter color than the places where the silicone wasn't yet failing. I didn't bother testing it with water and maybe it would have held but I figured since it was dry I would just go ahead and reseal it. I'm glad I did.

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Originally Posted by flight50 View Post
Did you use masking tape? It makes a cleaner job. More time consuming though. I don't think anyone has gotten it perfect their first time. I didn't. I didn't like some of the seams so I let it dry overnight so that I could peel up the silicone a little easier. Retaped it and resealed it. I nailed it the second time though. It just takes practice. If a craigslisting tank had perfect glass but the seams were shot, I'd take it as well. The seams can be redone. The plus to that is that you will know the exact conditions of the silicone if you do it. Most people will sell leaky tanks or bad silicone tanks much cheaper because they don't want to deal with it.
I did use masking tape but I didn't have the tape quite as straight and even as I thought I did. It's close enough, though, that most people looking at it will never know. And I'm sure the critters and vegetation won't care.

The glass is not perfect and now that I've seen it closer I can tell that it has some scratching. Again, it's not really noticeable unless you're really looking but now I have a far better idea of what to look for in a used tank. I'm going to enjoy this one a lot and that's really what it's all about so no worries...
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