Coldwater 20 gallon long ideas

[Avel1896]

Cold or heated water have the same maintenance criterias.
The only difference is temp.

 

[Essjay]

I will get my fish from my LFS though who uses the same water I do, so the fish should be adapted.

Fish at the store will have been there only a few days, maybe weeks at most. This is not time enough for them to become acclimatised to the water. They would be more acclimatised to the water in which they were bred, but the store will not know where they were bred as they will get them from a wholesaler who probably imported them.
Even then, unless the fish have been commercially bred for countless generations, they will be healthier in water similar to that in which they evolved.

So rather than assume they'll be OK in the same water as the store, take some tap water to the store and ask them to test it for GH.

You have plenty time during cycling to finalise the fish list.

 

[FreshwaterFins99]

They

Fish at the store will have been there only a few days, maybe weeks at most. This is not time enough for them to become acclimatised to the water. They would be more acclimatised to the water in which they were bred, but the store will not know where they were bred as they will get them from a wholesaler who probably imported them.
Even then, unless the fish have been commercially bred for countless generations, they will be healthier in water similar to that in which they evolved.

So rather than assume they'll be OK in the same water as the store, take some tap water to the store and ask them to test it for GH.

You have plenty time during cycling to finalise the fish list.

are a local breeder but I am working to get a test kit now

 

[FreshwaterFins99]

Cold or heated water have the same maintenance criterias.

The only difference is temp.

Parents dont want a heater for some reason

 

[Avel1896]

They are a local breeder but I am working to get a test kit now

This does not mean they are respectful to fishes. The best (only?) way is to ask for visiting their élevage and check tanks visually and through strips.

I advice you these strips JBL EasyTest 6 (or 7) in1 :

https://www.amazon.co.uk/dp/B07R5WDK5M/?tag=

 

[Essjay]

Are JBL products available in the US?

 

[FreshwaterFins99]

Cold or heated water have the same maintenance criterias.
The only difference is temp.

are rosy barbs too big? Any other types of barbs that are coldwater?

 

[Avel1896]

Are JBL products available in the US?

I dunno.

 

[Avel1896]

are rosy barbs too big? Any other types of barbs that are coldwater?

Rosy barb is too large.
I told you all Pethia : https://www.seriouslyfish.com/search/pethia
Your tank is OK for fishes up to 6 cm/2.3" maximum

 

[FreshwaterFins99]

I told you all Pethia

Any of these that wont nip corydoras?

 

[Avel1896]

Any of these that wont nip corydoras?

Unfortunately none

 

[FreshwaterFins99]

Unfortunately none

Are there any other besides the WCMM that wont nip?

 

[Avel1896]

Are there any other besides the WCMM that wont nip?

There lots of fishes that do not nip mostly are tropical soft acidic water like WCMM.
Poecilia "guppy" reticulata or Poecilia "endler" wingei never nip, but you have to keep only males or your tank will be crowded including all inherent problems.

 

[FreshwaterFins99]

There lots of fishes that do not nip mostly are tropical soft acidic water like WCMM.
Poecilia "guppy" reticulata or Poecilia "endler" wingei never nip, but you have to keep only males or your tank will be crowded including all inherent problems.

Cherry barbs? Are they ok?

 

[Avel1896]

Cherry barbs? Are they ok?

Cherry barb IS a barb. Barbs are known for nipping fins. Does best at 24°C/75-76°F even if can bear a little colder and hotter.