Black Diamond 20/40 Closeup - Page 2 - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #16 of 21 (permalink) Old 07-06-2012, 07:12 AM
Wannabe Guru
m00se's Avatar
Join Date: Jan 2011
Location: Syracuse, NY
Posts: 1,484
Originally Posted by stevenjohn21 View Post
There is metal of some sort in black diamond. If you run a magnet up and down the bag you will hear tiny grains following it...... is it harmful to our fish ? Who knows !


Nonsense. People.. if you haven't got 1st hand experience with this stuff please refrain from FUD. This stuff is silky, not abrasive in any way. Yes it is BLASTING MEDIA but if you know anything about sandblasting you know that this stuff is on the bottom of the aggressive scale for it's purpose. No catfish is going to suffer from it. No iron is going to turn your hands black. There no no OIL in it. It is thoroughly washed before it's bagged. Some particles will tend to float when you put it into water but will settle quickly. If you read the NUMEROUS threads on here you will see that it's an inert sub with no CEC value that is suitable for just about any scape.

It is also NOT the same as Black Beauty. That is a different brand, and not to be confused.

People on the west coast have trouble getting it. You might want to call ATI (1-800-343-0117) and register your thoughts with them.
m00se is offline  
Sponsored Links
post #17 of 21 (permalink) Old 04-29-2013, 11:58 PM
Algae Grower
Join Date: Dec 2011
Location: Philly
Posts: 87
question regarding the 1st set of pictures, just looking at the first set of pictures you can clearly see a few coal slag rods? that could potentially be spikes? whats everyones opinions on those? are they in every bag and no one has had a problem with them sticking in fish gills or the like?
chomper149 is offline  
post #18 of 21 (permalink) Old 04-30-2013, 01:23 AM
Planted Tank Enthusiast
aquarium hippy's Avatar
Join Date: Feb 2013
Location: Fort Worth TX
Posts: 545
Black Diamond 20/40 Closeup

I have this stuff in my tank and my horse faced loach sifts it through his gills constantly with no adverse effect.

Sent from my iPad using Tapatalk HD
Attached Thumbnails
Click image for larger version

Name:	ImageUploadedByTapatalk HD1367281424.116911.jpg
Views:	90
Size:	100.4 KB
ID:	135258  

aquarium hippy is offline  
post #19 of 21 (permalink) Old 05-01-2013, 10:53 AM
Algae Grower
Join Date: Dec 2011
Location: Philly
Posts: 87
and you also have those rod like pieces of the coal slag?
chomper149 is offline  
post #20 of 21 (permalink) Old 05-01-2013, 01:04 PM
Planted Tank Enthusiast
aquarium hippy's Avatar
Join Date: Feb 2013
Location: Fort Worth TX
Posts: 545
Re: Black Diamond 20/40 Closeup



aquarium hippy is offline  
post #21 of 21 (permalink) Old 05-01-2013, 04:26 PM
Algae Grower
Absntmind's Avatar
Join Date: Jul 2012
Location: Corpus Christi, Tx
Posts: 111
I purchased a couple bags of this from our local TS with the intent of changing my substrate from play sand. While rinsing I noticed a LOT of the needle like glass pieces of all sizes, some very small. After rinsing for almost an hour and realized I would never get most of it out I decided not to go with it. I researched and read many people use it without issue, though if I'm going to put media in the tank to be used for a length of time (years?) I came to the conclusion that it'd be better to just wait and spend the extra money for something else.

I love the way it looks but seeing as some fish take the substrate into their mouths, even passing it through the gills, I couldn't use it in good conscience. Yet I also understand the quality of this stuff varies from area to area.

Just my .02
Absntmind is offline  

abrasive, black diamond, gravel, sand, substrate

Quick Reply

Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome