Just bought a Jewel Rio 180 fish tank second hand. After filling it up I moved it a little with my hand to check if it was stable and have noticed that the tank wobbles slightly,is this normal?. I never noticed this on my previous tank which was 90 litres but had a larger stand. Are these stands safe?. Is there meant to be some movement on a fish tank? I'm worried there might be a disaster. Grateful for any advice Thanks. http://i1104.photobucket.com/albums/h340/ranyewooney/PICT0014.jpg
