Okay I will need to set up a qt in the next week or so. The plan is to buy one of those 10 gallon starter kits they sell at Walmart....made by tetra or hagen or something. I have an Aquaclear power filter that I used for my fw when I had it. Can I just buy a new sponge for this and place the new sponge in the return box of my Aqua Remora protein skimmer to develope a bio load for the qt. If so how long do I need to keep it there and how soon after transferring this over to the qt can I add fish? As it will be bb I suppose water changes to keep ammonia & nitrates down is a must. I plan to fill it with water from my main tank on the next water change.....no point wasting salt now is there......