Tank making popping noise! Not a mantis!

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Cygnus

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Dec 15, 2003
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I recently converted my freshwater tank to salt, and in doing so drained it completely and added 120 lbs of argonite. I shimmed the stand a while back to get it level but it was not perfectly level for a few months. While I had it drained, I shimmed it some more and this time got it spot on level. Well every once in a while I will hear a pop sound come from the tank. It did it even when it was freshwater, but not as often, and I assumed it was a fish knocking around a rock. Right now there is only live rock in the tank and nothing else. I don't think it is a mantis shrimp because it was doing it before the rock went in. Could this popping sound be the pine stand settling on the shims, or is this a sign that my tank could bust. I am really worried. The tank was bought new two years ago and is an oceanview brand. I have emailed them about it but have not gotten a response yet.

I should also mention that the tank does not leak or have any visible problems with the seams.

Thanks for any replies.
 
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Hmmm. Wish I could help more, but the best I can think of is that the stand/floor is settling? Since the noise was present previously and it hasn't broken, I don't think it would be the glass./ Any temperature fluctations in that area of the room? I know that my east facing walls will make quite a bit of noise first thing in the morning...
 
I think your are right. It would seem if the glass were to break it would just do it and not make noises for months. The stand is on a carpeted floor on a concrete slab (single story house.) Plus I noticed with it empty that it had a crossbrace on the bottom plane of glass and the top of the tank.

Come to think of it, I don't think I noticed the noise at all until I shimmed the tank the first time. Now the noise is louder, but I added more shims on a different corner. All of the pressure now is on the outer lip of the stand at the bottom. You know how cabinet stands are with a lip at the bottom and top of the stand.

Thanks OrionGirl. By the way, is your name after the constellation Orion?
 
Not directly, it's from my hound dog, Orion...Who is named for the hunter in the night time sky.
 
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