onyx sand?
 

how deep does onyx sand need to be for a suitable substrate? min, max?

how many sqare inches will a 7kg bag cover?

"slight buffering capacity" as in it does what to water chem?

thanks

onyx sand?
 

how deep does onyx sand need to be for a suitable substrate? min, max?

The package recommends 2", but I like it deeper myself -- 3"-4". There's no
max, really. (But too deep a substrate looks funny!)

how many sqare inches will a 7kg bag cover?

It says on the bag, but I forget.

I bought seven bags for my 75 gallon tank (18" x 48" footprint). It wasn't
quite enough, and I bought another bag. Eight bags of Onyx covered the bottom
of my tank to a depth of 3"-4".



Leigh

http://www.fortunecity.com/lavender/halloween/881/

onyx sand?
 

"LeighMo" wrote in message
...
how deep does onyx sand need to be for a suitable substrate? min, max?


Make sure you rinse it well. I had a heck of a time.

onyx sand?
 

LeighMo - no offence but since you have just indicated that 'He' is an
innapropriate pronoun - you should be more careful with statements like.....

The package recommends 2", but I like it deeper myself -- 3"-4".
Leigh

very big LOL

Martin.

onyx sand?
 

In article ,
Martin wrote:
LeighMo - no offence but since you have just indicated that 'He' is an
innapropriate pronoun - you should be more careful with statements like.....

The package recommends 2", but I like it deeper myself -- 3"-4".
Leigh

very big LOL



that was quite funny when you pointed it out ;-).

But i will be getting myself onyx sand. Seems like the better
flourite from what i hear.

"I like it to be thick, and be laid deeply, at least 4""

Whoever thought gravel could be the source of sexual double entendre?
--

onyx sand?
 

Is onyx sand easier to wash than flourite? It took me hours to wash flourite
before using it in the aquarium.

"WD" wrote in message
news:YQXga.240983$3D1.130586@sccrnsc01...

"LeighMo" wrote in message
...
how deep does onyx sand need to be for a suitable substrate? min, max?


Make sure you rinse it well. I had a heck of a time.

onyx sand?
 

"Boris" wrote in message
ogers.com...
Is onyx sand easier to wash than flourite? It took me hours to wash
flourite
before using it in the aquarium.



The first few bags I didn't rinse thouroghly enough. The fine particles made
the tank totally grey, less than 1 inch visibility. I let it sit for days,
the stuff wouldn't settle. I tried filtering it out. The filters couldn't
filter out anything that fine, and didn't have any type of filters on hand
that could handle such. I ended up doing like a 500% water change all told.
I put the python in on one side with fresh water coming in, and put a hose
siphoning ou tthe other side. Let it go for about 2 hours.
The other 2 bags I bough I dumped in a 5 gallon bucket, put the hose in
and swirled my hand around until the water was well, not as bad. About 15
minutes. *Some* fines, so I'm told, make for a better substrate.

onyx sand?
 

Funny thing David,

I went for Flourite instead of Onyx sand because there were far more
carbonates in Onyx than Flourite.....GH/KH therefore increases and my
hardness values were hight enough.
Theres a complete trace element chemistry comparison of these.......now
where was it!!!!

Thinking....See these (after a quick internet search) - there was a better
one which compared loads of substrates.

http://www.thekrib.com/Plants/Fertil...lourite.html#0
http://www.thekrib.com/Plants/Fertil...ate-jamie.html


"David Wee" wrote in message
...
In article ,
Martin wrote:
LeighMo - no offence but since you have just indicated that 'He' is an
innapropriate pronoun - you should be more careful with statements
like.....

The package recommends 2", but I like it deeper myself -- 3"-4".
Leigh

very big LOL



that was quite funny when you pointed it out ;-).

But i will be getting myself onyx sand. Seems like the better
flourite from what i hear.

"I like it to be thick, and be laid deeply, at least 4""

Whoever thought gravel could be the source of sexual double entendre?
--

onyx sand?
 

floss filtered onyx just fine in my experience. gravity took care of the
rest.

jtm

--
Remove NOSPAM for email replies
"WD" wrote in message
news:ka4ha.4552$Zo.4528@sccrnsc03...

"Boris" wrote in message
ogers.com...
Is onyx sand easier to wash than flourite? It took me hours to wash
flourite
before using it in the aquarium.



The first few bags I didn't rinse thouroghly enough. The fine particles made
the tank totally grey, less than 1 inch visibility. I let it sit for days,
the stuff wouldn't settle. I tried filtering it out. The filters couldn't
filter out anything that fine, and didn't have any type of filters on hand
that could handle such. I ended up doing like a 500% water change all told.
I put the python in on one side with fresh water coming in, and put a hose
siphoning ou tthe other side. Let it go for about 2 hours.
The other 2 bags I bough I dumped in a 5 gallon bucket, put the hose in
and swirled my hand around until the water was well, not as bad. About 15
minutes. *Some* fines, so I'm told, make for a better substrate.

onyx sand?
 

Is onyx sand easier to wash than flourite? It took me hours to wash flourite
before using it in the aquarium.

Onyx is harder to rinse than Flourite, IME.
But you shouldn't have to spend hours rinsing either of them. As someone else
said, let gravity and filtration do the work. You will have to change your
filter media the first day or two after putting in the substrate, though.

As for the chemistry, which I forgot to answer before...Onyx does raise your KH
and GH. A lot at first, but it kind of wears off with time. Flourite,
OTOH...though Seachem claims it's inert, many people have found it lowers the
pH, at least temporarily. This effect wears off fairly quickly, though.






Leigh

http://www.fortunecity.com/lavender/halloween/881/