Size of gravel for walstad tank

[Sprinkle]

A nice online website sells nice black 2-3mm gravel and nordic 2-4mm and i now question myself what size i need my gravel to b? I want to go as natural as possible so mayb that nordic 1?
I read on reddit that the smaller the gravel is the more chance for gas pockets & stuff, but foo the flowerhorn has 2-3mm gravel & it working 4 him?
And how many kgs of gravel would i need to make 1.5” of height? 2kg is enough?
Thanks!^^

 

[the loach]

2-3 mm is perfect, 2-4 mm is fine as well. The black substrate is very dark however, if you have shrimp that aren't white or yellow or dark bottom feeders they do become hard to see.

 

[FreshyFresh]

To me that size sounds perfect. Easier than sand to set plants in.

All I could find recently in that 2-3mm size is white. I mixed it with the 2-4mm natural gravel I had.

 

[Sprinkle]

Thank friends! I will get the nordic 2-4mm then. Is 2kg enough to make total of 1.5” in height or should i take more?

 

[FreshyFresh]

What is the footprint of the tank?

 

[Sprinkle]

I start measure the tank then it hit i could check online xD

 

[FreshyFresh]

So it's roughly 15"x15" ? I would think 10-12lbs would give you 1.5" Sorry.. Gotta convert it all to dummy US units for it to make sense to me.

 

[Sprinkle]

Okay, so i take 4kg to make 1.5”?

 

[Sprinkle]

FreshyFresh i just measure my tank and apparentely it is 31x28 so i no understanding. They say 38x32 & my measurement says 31x28. Weird~

 

[FreshyFresh]

Okay, so i take 4kg to make 1.5”?

That's what I'm thinking. Can't guarantee it though! LOL