Can gravel have an effect on nitrates ? - The Planted Tank Forum
 4Likes
  • 4 Post By theatermusic87
  • 2 Post By geisterwald
  • 2 Post By Leeatl
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 08-19-2016, 01:08 AM Thread Starter
Planted Tank Enthusiast
 
Leeatl's Avatar
 
PTrader: (1/100%)
Join Date: Aug 2015
Location: Woodstock,Georgia
Posts: 876
Can gravel have an effect on nitrates ?

My 3 tanks used to run the same as far as nitrates go , 20-40 ppm , and all had general aquarium gravel as substrate . I changed 2 of them to Black Diamond Blasting Grit a month or so ago and when I tested last night those 2 were 10-20 ppm and the one with gravel still was 40+ ppm . They are not identical tanks and I know that each tank is different , but each has about the same bio load , plant mass , feeding , and maint . I will get the nitrates back where they belong , but I was just curious if the gravel may have something to do with it . If so I will change it to BDBS too even though it will be a huge job...lol .

My wife says if I get one more aquarium she is going to leave me . I sure am going to miss her fried chicken .
Leeatl is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 08-19-2016, 03:00 AM
Wannabe Guru
 
PTrader: (1/100%)
Join Date: Jun 2014
Location: rochester ny
Posts: 1,401
Not necessarily the substrate, but there could've been stuff in your gravel that was decaying contributing to higher nitrates and fresh substrate removed that material...


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Help build the [
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
] and [
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
]
theatermusic87 is offline  
post #3 of 5 (permalink) Old 08-19-2016, 03:25 AM
Planted Tank Enthusiast
 
geisterwald's Avatar
 
PTrader: (5/100%)
Join Date: Jul 2016
Location: Eugene, OR
Posts: 772
Gravel has a higher CEC than sand, it makes sense to me that there'd be more rotting stuff in it that you couldn't necessarily get to. Not much gets into sand, most everything just stays on top. Thus, more nitrates with gravel, but it's not the gravel itself.
jaliberti and jaliberti like this.
geisterwald is offline  
 
post #4 of 5 (permalink) Old 08-19-2016, 03:41 AM Thread Starter
Planted Tank Enthusiast
 
Leeatl's Avatar
 
PTrader: (1/100%)
Join Date: Aug 2015
Location: Woodstock,Georgia
Posts: 876
Thanks guys . That is what I was thinking too . I will vacuum more and get them down and I will have to start seriously thinking of changing to BDBS . Coincidentally there is a thread on another forum on just this subject that was started right after I started this one and the replies there were along the same lines . I just found it interesting that the BDBS tanks had such lower nitrates . Another thing learned I guess . Thanks again .
geisterwald and geisterwald like this.

My wife says if I get one more aquarium she is going to leave me . I sure am going to miss her fried chicken .
Leeatl is offline  
post #5 of 5 (permalink) Old 08-20-2016, 07:15 AM
Planted Tank Guru
 
natemcnutty's Avatar
 
PTrader: (9/100%)
Join Date: May 2016
Location: Portland, OR
Posts: 2,419
Quote:
Originally Posted by Leeatl View Post
Thanks guys . That is what I was thinking too . I will vacuum more and get them down and I will have to start seriously thinking of changing to BDBS . Coincidentally there is a thread on another forum on just this subject that was started right after I started this one and the replies there were along the same lines . I just found it interesting that the BDBS tanks had such lower nitrates . Another thing learned I guess . Thanks again .
To clarify, it's not that sand tanks inherently have lower nitrates than gravel, it's that you lost a lot of detritus in changing to sand, and water flow will clean up more from sand than gravel (causing less detritus buildup).

You have the same conditions for generating nitrates regardless of substrate, but nobody wants to watch the film of bacteria grow on their sand. You don't see most of that with gravel, so you don't try to clean it up as much
natemcnutty is offline  
Reply

Tags
None

Quick Reply
Message:
Options

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

Password:


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

Email Address:
OR

Log-in










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