I recently moved a short distance away and had to take down and reset my tank rapidly. I didnt want to make new water and reaclimate everything so I put all my tank water and live rock in buckets. Here is the point. I didnt have bags and rubberbands to move fish and coral. I went to the local Martins Supermarket and bought Ziploc disposable tupperware. These are fantastic. Not only can you catch your fish in them along with dipping water out, but the lids form a tight seal. I plan on buying more to take to my local fish and coral provider based on how well these performed.