Stocking A 20 Gallon.

Nicole B

Member
Currently we have
3 mollies, 2 Dalmatian, 1 ballon
2 nerite snails
2 fry

20 gallon tank. (High)
Once we want more fish what could we get???
What fish do good with mollies?
Can we get a bottom feeder?


Our ph is pretty high. (8.2)
 

Hunter1

Member
Corys would be my choice.
 
  • Thread Starter

Nicole B

Member

Fredward

Member
Nicole B said:
Thank you! Do those get real big?
Depends on the species but generally 3 inches (8 cm) or under is the typical for most species of cory.
 
  • Thread Starter

Nicole B

Member
Fredward said:
Depends on the species but generally 3 inches (8 cm) or under is the typical for most species of cory.
Thanks!! Are those the only bottom feeders that stay small?
 

aquatickeeper

Member
You have some stocking issues if you'd like to discuss it.
 

Fredward

Member
Nicole B said:
Thanks!! Are those the only bottom feeders that stay small?
Some species of loaches possibly although you'd have to research the species carefully. There's a lot of variability between different types. KuhlI loaches come to mind (especially black kuhlI loaches, which stay near three inches) but I think your PH is a fair bit too high for them.
 

Hunter1

Member
The 20 high has a pretty small footprint, many say the minimum size for corys is a 20 long but I have them in a couple of 20 talls.

They should be kept in numbers of at least 6.

Pigmy corys rarely reach 2”, pepper corys are the biggest I keep and the females gets to about 3.5”.

They don’t bother anyone and clean up the left over food that hits the bottom of the tank.

They are one of my favorite fish and IMO a tank isn’t complete until I add corys.

You might reach out to aquatickeeper who offered to help with your stocking.
 
  • Thread Starter

Nicole B

Member
Hunter1 said:
The 20 high has a pretty small footprint, many say the minimum size for corys is a 20 long but I have them in a couple of 20 talls.

They should be kept in numbers of at least 6.

Pigmy corys rarely reach 2”, pepper corys are the biggest I keep and the females gets to about 3.5”.

They don’t bother anyone and clean up the left over food that hits the bottom of the tank.

They are one of my favorite fish and IMO a tank isn’t complete until I add corys.

You might reach out to aquatickeeper who offered to help with your stocking.
Hunter1 said:
The 20 high has a pretty small footprint, many say the minimum size for corys is a 20 long but I have them in a couple of 20 talls.

They should be kept in numbers of at least 6.

Pigmy corys rarely reach 2”, pepper corys are the biggest I keep and the females gets to about 3.5”.

They don’t bother anyone and clean up the left over food that hits the bottom of the tank.

They are one of my favorite fish and IMO a tank isn’t complete until I add corys.

You might reach out to aquatickeeper who offered to help with your stocking.
How many do you have in a 20 high?
 

Hunter1

Member
I keep them in groups of 6. There are times I have introduced 4 so the bioload doesn’t shock the cycle, but added 2 or more in a few weeks.

I have 6 in 2 20 talls, 6 in a 20 long, 6 in a 29 and 7 in a 36.

Different subspecies depending on water temperature, and one case availability.
 
  • Thread Starter

Nicole B

Member
Hunter1 said:
I keep them in groups of 6. There are times I have introduced 4 so the bioload doesn’t shock the cycle, but added 2 or more in a few weeks.

I have 6 in 2 20 talls, 6 in a 20 long, 6 in a 29 and 7 in a 36.

Different subspecies depending on water temperature, and one case availability.
Is that all you have in your tank or do you have other fish too?
 

Hunter1

Member
Other fish, betta and snails in 20 long, baby guppies and snails in 20 talls, harlequin rasporas in the 29 and still deciding on additional stock and guppies, cherry barbs, snails, honey gouramis in 36.

The 36 is overstocked requiring frequent, 50% water changes.
 

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