Silica sand

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Why not use sea sand Mekaeel...you are close to the beach...

However, there are guys using silica sand(poolsand) as DSB.
Another alternative is maybe try using playsand.

There was a debate in another forum that silica sand might leach silicates into the water....I think
 
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I would stick with the sugar fine (oolitic) aragonite. Done some reading on it and that seems to be the best.
 

Galibore

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Sounds good to me.

I know many aquarists that use silica sand, myself included.
 
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Eish...but the price on Caribsea Aragonite is steep!

Guess it gives you what you payed for..
I use Caribsea Aragonite as a DSB with some Caribsea Aragalive...Excellent results
 

Galibore

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Ridwaan, I think playsand is silica based, but I am not sure of this.

There is no proof thus far as far as I know that silica sand will leach per se. The playsand I have always been using says on the bag that it is inert, does not contain metals or any cancer causing agents (not that it's applicable).

But, I must add, that if I were living close to the see I would have used natural sea sand (very fine) mixed with some oolithic aragonite.
 

Galibore

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I like aragonite but the price makes it near impossible for me to buy in large quantities.
 

Galibore

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Yeah but according to Shimek, not suitable at all because it will damage (cut) the small crustaceans and worms because of sharp edges.
 

Galibore

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Unfortunately my knowledge/experience is too faint to make a call on that. One would assume that a leaned person like that won't be going around spreading hogwash. But then again, stranger things have happened.

I do mix in some CC, but very little, maybe a cup per 5KG.

If there are reasons to doubt Shimek, then please share as I don't want to blindly follow certain philosophies if they are wrong.
 
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nope Gal no reason, just wondering why most DSB's i've seen makes use of 2mm crushed coral. Possibly cost?
 
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IMO as long as the grain size is correct you can use whatever you want (silica, crushed coral, aragonite, sea sand)

I think the claims made for aragonite (in terms of buffering) are over-rated, but if you think it looks good go for it. I would use aragonite in main display for appearance purposes only, but would not waste my money using it as a DSB substrate.

Clinton
 

Alan

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IMO as long as the grain size is correct you can use whatever you want (silica, crushed coral, aragonite, sea sand)

I think the claims made for aragonite (in terms of buffering) are over-rated, but if you think it looks good go for it. I would use aragonite in main display for appearance purposes only, but would not waste my money using it as a DSB substrate.

Clinton
Would agree here, i have a silica bed that has been running for 4yrs and have about 62 fish in the system now with my nitrates sitting at about 3ppm
 

Alan

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What is the correct grain size for a DSB?

How do you measure it practically?

Is the fine white sand you get on beaches suitable?
The general measure is sugar grain size, as for the sea sand i can't answer as i have never used it but have heard of folk that have and not had any hassels.
 

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