sand board choice

[P593gat]

Boys for a sprinkling of sand must be provided only in the front thing recommended between these three? All are aragonite? All have the same white color is more yellowish or someone? thanks to anyone who will give me advice

http://www.aquariumline.com/catalog/...m-p-13978.html

http://www.caribsea.com/pages_caribsea/page_product_aragonite.html (sugar size)

http://www.caribsea.com/pages_caribsea/page_product_oceandirect.html

 

[kmbyrnes]

I am not certain what your real question is but it sounds like you are asking for advice on sand for the bottom of your tank. Any of these 3 choices will be fine.
The Fiji sand grains are quite small and will tend to blow around your tank if the flow is too strong. Fiji sand will need more cleanup crew to keep from getting compacted.
I would not spend money on live sand, unless you are in a hurry. Dead sand will become live soon enough. If you can get a cupful from your LFS to provide a start, that is even better.
So I would opt for number 2, Carib Sea Arogonite. It has medium grains that don't compact as much. Many successful reefers have built beautiful tanks with it.
Just be sure you rinse it extremely well before putting it in your tank.

 

[P593gat]

I am not certain what your real question is but it sounds like you are asking for advice on sand for the bottom of your tank. Any of these 3 choices will be fine.
The Fiji sand grains are quite small and will tend to blow around your tank if the flow is too strong. Fiji sand will need more cleanup crew to keep from getting compacted.
I would not spend money on live sand, unless you are in a hurry. Dead sand will become live soon enough. If you can get a cupful from your LFS to provide a start, that is even better.
So I would opt for number 2, Carib Sea Arogonite. It has medium grains that don't compact as much. Many successful reefers have built beautiful tanks with it.
Just be sure you rinse it extremely well before putting it in your tank.

I thank you for the answer. I have a doubt: the Carib Sea Aragonite is no longer the end of ATI fiji white sand? I found this information on the internet
Carib Sea Aragonite sugar size 0.1 - 1mm
ati fiji wite sand 0.3 to 1.2 mm

Also, what happens if you shrink?

 

[kmbyrnes]

You most likely do not want such a fine sand ( small size ) due to blowing sand.

Seaflor™ Special Grade Reef Sand
Typical Size: 1.0 - 2.0 mm
Average Density: 85 lb/ft3.

is what a lot of reefers use

 

[P593gat]

but with a sand at this particle size the sediment goes to settle between the grains with a consequent increase of no3 and PO4?

 

[kmbyrnes]

This will not necessarily increase NO3 and PO4 if you practice good tank cleaning procedures.
You will need some sand sifting CUC, like Nassarius snails, to keep your sandbed clean.
The large particle size may make it easier to keep things clean, as it will not get compacted, making it harder for the CUC to keep it clean.
The choice is up to you, but there is a lot of experience here on RC. And a lot of experienced reefers use the larger size sand.

 

[P593gat]

ok thanks for the info

 

[CStrickland]

Usually when people talk about substrate trapping detritus they mean crushed coral, it is quite large: 2.0 -5.5mm. The special grade sands are a balance between small enough to keep stuff from settling too much, and large enough not to be blown around the tank like sugar sand may.