Getting new tank and new filter

[Ilovefishes24]

Good night everyone
I'll be getting a new tank and new filter
I'll also be keeping my old filter
How exactly should I go about this
Should I just setup my old filter on the new tank. And set then setup my new filter on new tank
How long would my new filter get BB

 

[DN328]

If you think the new filter eventually can handle the filtration, perhaps seeding it with the media from the old filter. Else you can start the nitrogen cycle from scratch.

Get a test kit if you don't already have one so that you can get an idea of what's happening with your water.

 

[Ilovefishes24]

If you think the new filter eventually can handle the filtration, perhaps seeding it with the media from the old filter. Else you can start the nitrogen cycle from scratch.

Get a test kit if you don't already have one so that you can get an idea of what's happening with your water.

Thanks. I'll try that
I have a test kit
My 30G is cycle

 

[skjl47]

Hello; First I will assume the old tank is running with fish in it and is cycled. You have several possible ways to set up a new tank.
The simpler is to stick both filters on the new tank. I like to set up the new tank with it full of water, substrate and all other equipment and run it without any fish for a day or few. This way if any problems show up I can fix them before moving any fish. It also gives time to get the temps adjusted.
Once all the equipment is operating well I add some live plants and live snails. On the day you plan to add the fish then move the old filter on the same day. The old filter will most likely have enough beneficial bacteria (bb) colonies as a bio film on the surfaces of the filter and it's media. Then you have the choice of running both filters for a few weeks. After around six weeks the new filter should be well colonized with bb.

There are other ways if this does not suit.

 

[Ilovefishes24]

Hello; First I will assume the old tank is running with fish in it and is cycled. You have several possible ways to set up a new tank.
The simpler is to stick both filters on the new tank. I like to set up the new tank with it full of water, substrate and all other equipment and run it without any fish for a day or few. This way if any problems show up I can fix them before moving any fish. It also gives time to get the temps adjusted.
Once all the equipment is operating well I add some live plants and live snails. On the day you plan to add the fish then move the old filter on the same day. The old filter will most likely have enough beneficial bacteria (bb) colonies as a bio film on the surfaces of the filter and it's media. Then you have the choice of running both filters for a few weeks. After around six weeks the new filter should be well colonized with bb.

There are other ways if this does not suit.

Thanks a lot buddy. Sorry. I forgot to reply. My new filter is coming tommorrow and my tank is arriving on Thursday. So tommorrow I'll stick the new filter on the old tank until Thursday then on Thursday I'll but both filters on my new tank.
I also have 5 fish my now. So replacing it with 5 new fish will ok right

 

[skjl47]

I also have 5 fish my now. So replacing it with 5 new fish will ok right

Hello; This should be OK. The size of the fish might make a difference.

Say if the five old fish were small such as neon tetras and the new fish were larger cichlids, then the balance will be off.
A big fish is likely to make more ammonia waste than a small fish. One large cichlid may well be the equivalent of 40 neon tetras.
1st scenario - If the mass of the five new fish is similar to the mass of the five old fish, then the balance of the bb should match fairly well.
2nd scenario - The mass of the old fish is larger than the mass of the new fish, then the balance of the bb will be off but in a positive manner. Meaning there will be a lot more bb around than actually needed. The bb population will slowly be reduced until it is in balance but there will not be an ammonia spike.
3rd scenario - The mass of the old fish is smaller than the mass of the new fish, then the balance of bb may be off in a negative way. The bb population likely will not be able to convert all the ammonia right away. It will take time for the bb population to reproduce and increase enough to deal with the ammonia. You may get what is called an ammonia spike.
This scenario can happen if a lot of small fish or a very large fish is added to even an old established tank.

All that being said there are still some details not covered. In addition to the size(mass) of fish other things may play a role. Some fish are "messy" eaters. Some fish are sedentary while others are active. These things may not have the same impact as mass, I do not know for sure.

Good luck

 

[Ilovefishes24]

Th

Hello; This should be OK. The size of the fish might make a difference.

Say if the five old fish were small such as neon tetras and the new fish were larger cichlids, then the balance will be off.
A big fish is likely to make more ammonia waste than a small fish. One large cichlid may well be the equivalent of 40 neon tetras.
1st scenario - If the mass of the five new fish is similar to the mass of the five old fish, then the balance of the bb should match fairly well.
2nd scenario - The mass of the old fish is larger than the mass of the new fish, then the balance of the bb will be off but in a positive manner. Meaning there will be a lot more bb around than actually needed. The bb population will slowly be reduced until it is in balance but there will not be an ammonia spike.
3rd scenario - The mass of the old fish is smaller than the mass of the new fish, then the balance of bb may be off in a negative way. The bb population likely will not be able to convert all the ammonia right away. It will take time for the bb population to reproduce and increase enough to deal with the ammonia. You may get what is called an ammonia spike.
This scenario can happen if a lot of small fish or a very large fish is added to even an old established tank.

All that being said there are still some details not covered. In addition to the size(mass) of fish other things may play a role. Some fish are "messy" eaters. Some fish are sedentary while others are active. These things may not have the same impact as mass, I do not know for sure.

Good luck

thanks a lot. Good info
So currently
2 keyhole cichlids
1 threadfin. Acara
1 paradise gourami
1 rainbow.
I'm planing to replace them with 4 geophagus redhead Tapajos
1 severum
1 r