chipmgnet Posted June 9, 2010 Report Share Posted June 9, 2010 I've just bought a 120cm tank. I want to reuse my sand/gravel, driftwood,plants, filter, ornaments and fish from my 100cm tank.My partner is going to do the same, using his 60cm tank and upgrading to my 100cm tank. I know major mission. What is the best way to do this? Where do I start?how long will I have to leave the tanks to cycle? Any thing else I need to think about? Quote Link to comment Share on other sites More sharing options...
Jennifer Posted June 9, 2010 Report Share Posted June 9, 2010 I prefer to use mature media from an existing set up and then increase the number of fish gradually. If I can't do that then I use fishless cycling. You can also 'seed' the filter with a commercial products like TLC Smart Start. There is some good info about fishless cycling here: viewtopic.php?f=10&t=43660&p=473162&hilit=fishless+cycling#p473162 Quote Link to comment Share on other sites More sharing options...
DennisP Posted June 10, 2010 Report Share Posted June 10, 2010 If you're 100cm is still set up, you can use the same water. Quote Link to comment Share on other sites More sharing options...
Ira Posted June 10, 2010 Report Share Posted June 10, 2010 I've just bought a 120cm tank. I want to reuse my sand/gravel, driftwood,plants, filter, ornaments and fish from my 100cm tank.My partner is going to do the same, using his 60cm tank and upgrading to my 100cm tank. I know major mission. What is the best way to do this? Where do I start?how long will I have to leave the tanks to cycle? Any thing else I need to think about? Best way? Move the contents of the 100 into the 120, move the contents of the 60 to the 100. You basically should not need to cycle the tanks. Quote Link to comment Share on other sites More sharing options...
Simian Posted June 10, 2010 Report Share Posted June 10, 2010 If you're 100cm is still set up, you can use the same water. Note that there is very little bacteria in the water, it helps, but for best results use the same substrate and plants/ornaments Quote Link to comment Share on other sites More sharing options...
BikBok Posted June 10, 2010 Report Share Posted June 10, 2010 when i upgraded from my 34 L tank to the 160L one, i just moved all the gravel and filter media and transferred the same ornaments and driftwood, plants etc. There wasn't much water to make a difference but i added that too and topped up with the extra gravel and noodles I needed. The existing bacteria did their job because the fish numbers were the same and I added new fish slowly over several weeks. I also use TLC bacteria which helps things along. I didn't get any ammonia spikes so it all went quite well. Quote Link to comment Share on other sites More sharing options...
DennisP Posted June 10, 2010 Report Share Posted June 10, 2010 I cycled my 240L for about 2 days before the discus went in. I'm very impatient. Quote Link to comment Share on other sites More sharing options...
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