Switching Fish To A New Tank?

[Le Sorcier]

I plan to switch my set up from a 27l to a 60l.

Can I use 100% new water in the new tank or should I add some from the old one?

And the main question is with a new filter, could I just put my old sponges loose in the tank for a week or so or maybe attach them to the outside of the new filter? Or maybe even cut the sponge so it fits in the new filter?

And how long would I need to do this for?

Many thanks

ps

The fish being moved are
2 Platys
2 Mollies
1 Endler
5 Cories

 

[lisa_da_best]

hi,

i would suggest that you put a fair bit of the water from the old tank to fill the new tank. This will help to add good bacteria. For the filter i would put some of the sponge into the new filter. The process shouldn't take too long but you are suppose to leave the new tank 24hours to let the water "settle" before adding any of the fish. Remember that when starting up a new aquarium be aware of the ammonia spike that will happen.

lisa

 

[Truck]

hi,

i would suggest that you put a fair bit of the water from the old tank to fill the new tank. This will help to add good bacteria. For the filter i would put some of the sponge into the new filter. The process shouldn't take too long but you are suppose to leave the new tank 24hours to let the water "settle" before adding any of the fish. Remember that when starting up a new aquarium be aware of the ammonia spike that will happen.

lisa

water holds little if no bacteria (most probably less than 0.01% )

add the old water into the new tank and top off with fresh, get it up to temp and dechlorinate it, then take out the current filter media and put it into the new filter, turn on and transport fish and then keep an eye on water stats for a few weeks

 

[kbekll]

if it was me i would almost fill the other tank up get it to temperature then once at temp transfer the water and filter over to the new tank 10 mins befor i added the fish just to make sure water stats were ok or very similar to the old tank

then add the fish from the old to the new

then run both filters one the new tank for a week

this also gives you the option of using the old tank for new fish almost straight away as you will have an established filter to put in the original tank

 

[Le Sorcier]

if it was me i would almost fill the other tank up get it to temperature then once at temp transfer the water and filter over to the new tank 10 mins befor i added the fish just to make sure water stats were ok or very similar to the old tank

then add the fish from the old to the new

then run both filters one the new tank for a week

this also gives you the option of using the old tank for new fish almost straight away as you will have an established filter to put in the original tank

Thats sounds like a good idea. A week with both filters should be long enough?

 

[kbekll]

it depends some leave for a month others less also would depend on filters as well

leave it running untill you need it

 

[hollanda88]

if it was me i would almost fill the other tank up get it to temperature then once at temp transfer the water and filter over to the new tank 10 mins befor i added the fish just to make sure water stats were ok or very similar to the old tank

then add the fish from the old to the new

then run both filters one the new tank for a week

this also gives you the option of using the old tank for new fish almost straight away as you will have an established filter to put in the original tank

Thats sounds like a good idea. A week with both filters should be long enough?

If your going to take the matured pads out of the old filter and put them in the new you wont "need" to run both at all. If you are running them side by side to seed the new filter with bacteria then it will take about a month maybe longer depending on the stocking.

Taking the pads out of the old and putting them in the new will leave you with only one matured filter whereas after a month of running both filters on the same tank you should have 2 matured filters. Then you can have a quarentine tank for new fish with your old tank,

andrew

 

[tom_os]

if i were you i would set up the new tank, add everything (the decor, heater, substrate, plants etc) fill it up with dechlorinated tap water then add the filter media from the mature filter along with a little bit of new media to the new filter. leave it an hour to settle then add the fish

keep an eye on the water for a week or two and do a waterchange if nitrite or ammonia is detected