Reef Central Online Community

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community Archives > General Interest Forums > New to the Hobby

 
 
Thread Tools Search this Thread Display Modes
  #1  
Old 12/19/2005, 09:13 PM
bertoni bertoni is offline
RC Mod
 
Join Date: Mar 2002
Location: Foster City, CA, USA
Posts: 35,743
Bare-Bottom Tanks

Many aquarists prefer not to have a substrate at all. This choice allows for close regulation of nutrient levels in the aquarium through use of high flow, strong skimming, and manual and mechanical removal of detritus (waste, leftover food, etc). No money need be spent on sand, or animals for the sand. Startup costs are thus very low, excepting a suitable protein skimmer. Systems set up this way are often called "bare-bottom tanks".

This approach is an update of the "Berlin system", using better skimmer and water flow technology. The goal is to prevent the breakdown of leftover food and waste by removing such detritus before bacteria can begin to consume it. The water can be kept very low in dissolved nutrients with diligent effort. Proponents argue that this method is useful in controlling nutrient levels, such as phosphate content.

This is a common choice of stony coral tanks, often Acropora-dominated, where the strong focus on nutrient levels is thought to aid growth and color. As with any system, some livestock may not be compatible with this method. For example, sea cucumbers and various conchs that feed on sand are not appropriate in such systems.

Many aquarists recommend an extended "curing" of the rock for BB systems. For this process, the rock is kept in the dark in containers heated to reef temperatures with good flow and frequent water changes. Any detritus sloughed off the rock is removed as well. This treatment removes nutrients from the rock. Often called "cooking", this process usually requires 1-2 months.
__________________
Jonathan Bertoni
  #2  
Old 12/19/2005, 09:18 PM
bertoni bertoni is offline
RC Mod
 
Join Date: Mar 2002
Location: Foster City, CA, USA
Posts: 35,743
This thread is part of a series. The base thread is located here.
__________________
Jonathan Bertoni

Last edited by bertoni; 03/18/2006 at 04:34 PM.
 

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not 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 On

Forum Jump


All times are GMT -5. The time now is 04:01 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef Central Reef Central, LLC. Copyright 1999-2009