Jacen Posted June 22, 2007 Report Share Posted June 22, 2007 I currently have a 25 gallon tank and I just arranged to upgrade it to a 60 gallon bowfront aquarium. I have never upgraded a tank before and I am wondering how it should be done. 1. Should I cycle the tank first with completely new water or should I just take all the water out of the current tank and put transfer it into the new tank and then add new water. This would be just under half of the total volume of water in the new tank. Please suggest if this is a bad course of action or not. 2. If I am able to move the water from the old tank to the new one and move the fish into it at the same time, how long should I wait before getting more fish to add to the tank? Thanks Quote Link to comment Share on other sites More sharing options...
Qattarra Posted June 22, 2007 Report Share Posted June 22, 2007 (edited) Is everything going into the new tank? Filter, gravel , plants, ornaments etc.? If so just switch everything over, including water, this will of course include all bacterias. By topping up with fresh treated water it'll act like a big water change. If you are not transfering everything, IMO cycle the new tank. Keep in mind that only about 10% of the beneficial bacts. are in the water colum , the rest are mainly in the filter and then the substrate.Sue Edited June 22, 2007 by Qattarra Quote Link to comment Share on other sites More sharing options...
Jacen Posted June 22, 2007 Author Report Share Posted June 22, 2007 I will be transferring everything over, substrate and plants and all. The only thing that won't be transferred is the filter because the tank comes with a filter already. Quote Link to comment Share on other sites More sharing options...
Qattarra Posted June 22, 2007 Report Share Posted June 22, 2007 you will want to transfer the filter, add the new filter too. Do not give up your bacts. Quote Link to comment Share on other sites More sharing options...
BigA Posted June 22, 2007 Report Share Posted June 22, 2007 I would say put the new filter (and keep the old one on too) on the old tank for a couple of weeks before setting up the new tank. This will prime the filter and make things go even more smoothly when you transfer everything over to the new tank. Quote Link to comment Share on other sites More sharing options...
JORG Posted June 23, 2007 Report Share Posted June 23, 2007 If you are going to transfer all the old water and substrate + use the old filter in combination with the new one I would put the fish in right away .I've done it many times never had a problem.I would wait a couple weeks before removing the old filter and adding new fish and don't forget to moniter the water and do water changes if nitrite or ammonia get a little up. Quote Link to comment Share on other sites More sharing options...
Jacen Posted June 23, 2007 Author Report Share Posted June 23, 2007 OK that is a great idea. Thanks for the info and I wil let you all know how it goes. Quote Link to comment Share on other sites More sharing options...
fishytime Posted June 23, 2007 Report Share Posted June 23, 2007 I say leave the old filter on. I allways overfilter my tanks. If there is such a thing. Quote Link to comment Share on other sites More sharing options...
Jacen Posted June 25, 2007 Author Report Share Posted June 25, 2007 So...the tank is working well. I bought a frontosa yesterday and another cuchlid from Gold Aquariums in calgary and they are doing well. So are all the other fish that were already in there. Quote Link to comment Share on other sites More sharing options...
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