Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Getting Started
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 06-06-2008, 04:41 PM   #1
Aquarium Advice Newbie
 
Join Date: Jun 2008
Posts: 1
upgrade paranoia !?

hi all.
new here but not new to fish keeping. but after upgrading from a 15g to a 250g tank i have a few worries/questions. ill start with weight. having set up the tank myself i know there is a lot of weight and pressure there and i know the tank should take it but i had a worry when i got it. call it paranoia or a stupid question but evey other tank i have had, would sit flat on the cabinet and i would put sum polystyrene between the 2 to spread the weight. but with this new tank it doesnt sit 'flat' on the cabinet. the tank 'sits' on a thin about 3" wide strip of plastic around the outside bottom edge, with a further strip running the width through the middle. then between this 'frame' and the tank is a sheet of foam to 'spread' the load. (now comes the paranoia). but to me the tank is not sitting flat.??!! now as i have gone for a rockscape there is a lot of weight in there. should i be worried?
last question (for now) is level. how critical is this? i thought i had it pretty level, but upon filling the tank i realised how far out i was. over the length (122cm) there is about a 1cm difference in the water level.
thats about it with my problems for now.... i hope
thanks for your patience and sorry if i went on a bit
and thanks in advance for any replies.
__________________

__________________
Robbo20236 is offline   Reply With Quote
Old 06-07-2008, 12:22 AM   #2
AA Team Emeritus
 
Devilishturtles's Avatar
 
Join Date: Jul 2003
Location: Frederick, Maryland
Posts: 8,543
Send a message via Yahoo to Devilishturtles
Every glass tank I've ever had has the plastic lip... it should be fine. With something underneath to evenly spread the weight I wouldn't worry about it, but I'm not structural engineer either! To be safe, you may want to contact AllGlass (likely the manufacturer of your tank) and check with them but I would imagine you have nothing to worry about.

Welcome to AA
__________________

__________________
-Lindsay

Live in the Western MD/West Virginia/DC Metro Area?
Join our very active regional forum Here

Like the advice someone just gave you? Add to their reputation! Click on the balance icon underneath their username and let them know.
Devilishturtles is offline   Reply With Quote
Old 06-09-2008, 02:08 PM   #3
Aquarium Advice Freak
 
Join Date: Jan 2005
Location: Arlington TX
Posts: 220
If you really want to save your tank from pressure cracks... any tank from 10g on up... always use a piece of corrugated box cardboard between stand and tank. For large tanks, 55g and up use a piece of rug (strips ~2" wide along all edges) to take up all the minute differences between stand and tank. Make sure that whatever you are using as a stand, can take the weight without bowing. 1 gallon H2O = 8.43 lbs, that doesn't include weight of glass, gravel or other things. Make sure the floor can take the weight too.
__________________
kimo is offline   Reply With Quote
Old 06-09-2008, 11:55 PM   #4
AA Team Emeritus
 
jsoong's Avatar


 
Join Date: Aug 2003
Location: Edmonton, Canada
Posts: 4,222
Glass tanks are designed to have all the weight resting on the rim, with the bottom pane raised. This is supposed to reduce the risk of cracking the bottom pane.

As long as the entire rim is resting evenly on your cabinet, you should be fine. The styrofoam under the rim is supposed to crush down to conform to any minor uneveness of the cabinet. If you run a card along the rim, there should be no gap at all around the whole rim. If there is any gap, you need to level the cabinet (shim or sand) to prevent pressure cracks.

A 1 cm out of level is *probably* OK. Although to be doubly safe, you might want to do better than that. <I aim for less than 1/4" or 0.5 cm when setting up my tank.> And as the previous post said, make sure the floor can support that weight .... else the floor will sag & shift and the tank will get really out of level over the next weeks/months and give you problems.

Also, if you have a lot of rocks in the tank, most would suggest putting the rocks on top of egg crate (a plastic grid) to spread out the load & minimise the stress on your tank bottom.
__________________
80 gal FW with 30 gal DIY wet/dry/sump.
9 fancy golds, 1 hillstream loaches, 1 rubber-lip pleco (C. thomasi), 3 SAEs, small school of white cloud minnows, planted.
jsoong is offline   Reply With Quote
Old 06-10-2008, 02:44 AM   #5
Aquarium Advice Freak
 
Join Date: Jan 2005
Location: Arlington TX
Posts: 220
Quote:
Originally Posted by jsoong View Post
Glass tanks are designed to have all the weight resting on the rim, with the bottom pane raised. This is supposed to reduce the risk of cracking the bottom pane.

As long as the entire rim is resting evenly on your cabinet, you should be fine. The styrofoam under the rim is supposed to crush down to conform to any minor uneveness of the cabinet. If you run a card along the rim, there should be no gap at all around the whole rim. If there is any gap, you need to level the cabinet (shim or sand) to prevent pressure cracks.

A 1 cm out of level is *probably* OK. Although to be doubly safe, you might want to do better than that. <I aim for less than 1/4" or 0.5 cm when setting up my tank.> And as the previous post said, make sure the floor can support that weight .... else the floor will sag & shift and the tank will get really out of level over the next weeks/months and give you problems.

Also, if you have a lot of rocks in the tank, most would suggest putting the rocks on top of egg crate (a plastic grid) to spread out the load & minimise the stress on your tank bottom.
1/4" is way too much even for a 10g. Try for less than 1/32". The corrugated cardboard will take up the difference plus... ever try to move even an empty 10g off a varnished table after it has been sitting there for 5 -10 yrs? Its next to impossible without removing the finish also (and you being removed from the house if the wife ever finds out what you did to her table!). That piece of carboard will save you a lot of trouble in the end.
__________________
kimo is offline   Reply With Quote
Reply

Tags
upgrade

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
newbie paranoia...brown gunk on wood new2betas Freshwater & Brackish - Getting Started 9 06-24-2008 11:25 PM
20 -> 29 upgrade neilanh Freshwater & Brackish - Planted Tanks 13 05-19-2007 04:48 PM
parasites or paranoia? (rather long) SeymourFRESH Freshwater & Brackish - General Discussion 7 10-19-2006 03:19 PM
Looking for an upgrade... aquarist15 Archive 6 11-07-2005 03:40 PM
Parasite or Paranoia?? debbieg Freshwater & Brackish - Unhealthy Fish 6 06-15-2004 11:13 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 05:21 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.