lucy Posted May 2, 2009 Report Share Posted May 2, 2009 Hi I have asked this question previously but only got one answer so would like a general consensus please, if you move a tank or bump it, what sort of time frame is it likely to break in please. Quote Link to comment Share on other sites More sharing options...
Bilbo Posted May 2, 2009 Report Share Posted May 2, 2009 I hope that a bump shouldnt break a tank unless it is a large bump or a badly made tank. Tanks should only be moved when empty. Look here for a thickness calculator to show how strong your tank is. http://fnzas.org.nz/index.php?PG=glass3 It might be a good idea to tell us how big your tank is and how thick the glass is. I have bumped or moved all my tanks from time to time and I will let you know how long until one breaks because of it. 10 years so far though. Stepping on one outside at night or dropping one while tripping over the stupid dog seems be an easy way to break one though :roll: Quote Link to comment Share on other sites More sharing options...
Adrienne Posted May 2, 2009 Report Share Posted May 2, 2009 My first fish tank - now 27 years old has gone through multiple shifts all around nz (and I do mean all around), has been bumped and is still going strong and no - I have not re siliconed it. Quote Link to comment Share on other sites More sharing options...
Barrie Posted May 2, 2009 Report Share Posted May 2, 2009 glass is either broken or not... simple really If you see a crack then its broken If you bump it and cant see a crack then it is now and will not break A chip (shell is what its called in the trade) can be a weak point for the future Shifting a tak is a whole different matter as that can create different stresses in different points due mainly to a slightly uneven surface that the tank is sitting on. Dont for get that if the weight come on the tank when you fill it, it can take a full 12 months to settle completely due to the seasonal changes in even the earth under and around your home Quote Link to comment Share on other sites More sharing options...
lucy Posted May 4, 2009 Author Report Share Posted May 4, 2009 Thanx for the site for calculating the strength of a tank. I measured the tank, the problem is I can't get the lip off to measure the thickness of the glass, but I put my finger each side of it and they were approx 2mm apart. Does anyone know the thickness of glass in a 620T tank so I can accurately get a calculation? :roll: Quote Link to comment Share on other sites More sharing options...
Barrie Posted May 4, 2009 Report Share Posted May 4, 2009 what area do you live in? If your in Auckland, I have a reflection meter to measure the thickness Quote Link to comment Share on other sites More sharing options...
lucy Posted May 12, 2009 Author Report Share Posted May 12, 2009 Sorry I don't live in Auckland and taken so long to reply, but thanx for the offer. I think I will break one of my tanks properly and prove it's not very thick. I made enquiries yesterday at the pet shop, they rang the ditributers and got back to me that they are 10mm to 12mm thick, not sure why my fingers were just about touching from either side of the glass. I'll keep you posted. :bounce: Quote Link to comment Share on other sites More sharing options...
lmsmith Posted May 12, 2009 Report Share Posted May 12, 2009 According to a glass guy I know, apparently the aqua one 620 tanks (not sure about the 620Ts) are 6mm glass, about 4mm on the corners. I'd say that estimate is even a bit liberal; I'd say they were more like 4mm all over. And 10mm? A cm thick? Who are they trying to kid? They'd be about twice as heavy with 10 or 12 mm glass, and they're light as. Quote Link to comment Share on other sites More sharing options...
phoenix44 Posted May 12, 2009 Report Share Posted May 12, 2009 Lucy I wouldn't go breaking another tank just to prove a point. it will cost you more than you will get out of it in the end. having said that I too think 10 -12mm is a bit generous for those tanks. Quote Link to comment Share on other sites More sharing options...
Barrie Posted May 13, 2009 Report Share Posted May 13, 2009 most glass companies can get or will have reflection guages which will give a good indication as to the thickness as lucy hasnt got an area in her profile, I cant recomend anyone to help with that part of it Quote Link to comment Share on other sites More sharing options...
lucy Posted May 13, 2009 Author Report Share Posted May 13, 2009 Thanx guys for your help, I broke two last night remember they are already cracked and terriums now. My partner has something to accuratley measure them with, they look about 5mm thick, what a difference to doing the old fingers together trick. I'm also going to sample some of the corner glass aswell thanx for your input. 8) Quote Link to comment Share on other sites More sharing options...
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