Corydoras a bad idea?

[Avel1896]

Yet JBL says :

Ideal substrate
The substrate is an important part of the aquarium components because a lot of animals dig in the ground to search for food. The plants also need a safe hold and have to absorb the food in the ground through their roots. Digging fish absolutely need a substrate which is not sharp-edged. Undergravel heating can only be recommended for medium-fine to coarse substrates because water circulation cannot really build up in very fine substrates.

Use:
Rinse the substrate with tap water to remove any abrasion caused in transit. Put substrate on the nutrient substrate (JBL AquaBasis) to promote the plant growth (for vigorous growth about 6-8 cm).
Calculation formula
The right amount of substrate: length (cm) x width (cm) : 140 = kg substrate with 5 cm thickness.

 

[Ravenes]

Alright so instead of corydoras how about dwarfs?

 

[Essjay]

Dwarf what? There are lots of fish with dwarf in the name.

 

[Avel1896]

Alright so instead of corydoras how about dwarfs?

What dwarfs ??

 

[Ravenes]

Dwarf what? There are lots of fish with dwarf in the name.

Dwarf corydoras?

 

[Byron]

Dwarf corydoras are still corydoras, and the sand is just as much (perhaps even more) of an issue with the three "dwarf" species of cory.

 

[Ravenes]

Dwarf corydoras are still corydoras, and the sand is just as much (perhaps even more) of an issue with the three "dwarf" species of cory.

How?

 

[Byron]

How?

All species in the genus Corydoras are filter feeders. This involves taking up a mouthful of the substrate, filtering out any food, and expelling the substrate through the operculum. They cannot filter feed with substrate larger than sand. [The larger species such as those now in the genus Scleromystax obviously can handle coarse grain sand (larger grains), but not the normal and "dwarf" species.] Nor can they have rough grain sand/gravel which can damage the barbels, mouth, etc. I had a panda cory several years ago that lost about 1/3 of the lower jaw due to the roughness of Flourite--which some deem "safe" for cories [and before I knew better]. Placed over smooth play sand, it recovered though it looked a bit "lopsided." Another issue with gravel, whether or not "smooth," is that food particles get down too easily, and the bacterial problems can be significant for substrate fish.

 

[Avel1896]

Dwarf corydoras?

No. Not housed with (any) Barbs.

 

[Ravenes]

No. Not housed with (any) Barbs.

All species in the genus Corydoras are filter feeders. This involves taking up a mouthful of the substrate, filtering out any food, and expelling the substrate through the operculum. They cannot filter feed with substrate larger than sand. [The larger species such as those now in the genus Scleromystax obviously can handle coarse grain sand (larger grains), but not the normal and "dwarf" species.] Nor can they have rough grain sand/gravel which can damage the barbels, mouth, etc. I had a panda cory several years ago that lost about 1/3 of the lower jaw due to the roughness of Flourite--which some deem "safe" for cories [and before I knew better]. Placed over smooth play sand, it recovered though it looked a bit "lopsided." Another issue with gravel, whether or not "smooth," is that food particles get down too easily, and the bacterial problems can be significant for substrate fish.

Because I use sand it doesn’t look rough and I’ve got 5 white skirts that look like they don’t go down much.

 

[Ravenes]

All species in the genus Corydoras are filter feeders. This involves taking up a mouthful of the substrate, filtering out any food, and expelling the substrate through the operculum. They cannot filter feed with substrate larger than sand. [The larger species such as those now in the genus Scleromystax obviously can handle coarse grain sand (larger grains), but not the normal and "dwarf" species.] Nor can they have rough grain sand/gravel which can damage the barbels, mouth, etc. I had a panda cory several years ago that lost about 1/3 of the lower jaw due to the roughness of Flourite--which some deem "safe" for cories [and before I knew better]. Placed over smooth play sand, it recovered though it looked a bit "lopsided." Another issue with gravel, whether or not "smooth," is that food particles get down too easily, and the bacterial problems can be significant for substrate fish.

In fact I don’t use gravel anymore I gave it all away. The brand of sand I use is carribsea. I think crystal river substrate.