walstad tanks
Planted Tank Forums
Your Tanks Image Hosting *Tank Tracker * Plant Profiles Fish Profiles Planted Tank Guide Photo Gallery Articles

Go Back   The Planted Tank Forum > General Planted Tank Forums > General Planted Tank Discussion

Thread Tools Display Modes
Old 09-16-2012, 05:36 PM   #1
Algae Grower
PTrader: (12/100%)
Join Date: Jul 2011
Location: Staten Island, NY
Posts: 102

walstad tanks

Is using an air-driven sponge filter bad for a Walstad tank? I'm inclined to think so, since the surface agitation would cause co2 to gas out. But at the same time, there should be some surface movement to prevent any biolfilm.
wingyuu is offline   Reply With Quote Quick reply to this message
Sponsored Links
Old 09-16-2012, 05:41 PM   #2
Planted Tank Enthusiast
WallaceGrover's Avatar
PTrader: (6/100%)
Join Date: Jan 2011
Location: Texas
Posts: 727

Unless you're injecting CO2 via a pressurized system (which isn't really a Walstad tank), it isn't a big deal...
WallaceGrover is offline   Reply With Quote Quick reply to this message
Old 09-16-2012, 05:59 PM   #3
Planted Tank Guru
PTrader: (0/0%)
Join Date: Jan 2010
Location: Contra Costa CA
Posts: 10,021

A gentle ripple at the surface, from any source is about right. Enough gas exchange and water movement throughout the tank, but not too much.
I find sponge filter run by bubblers do not create much water movement deep in the tank, but create a lot of action at the surface. I would rather do the opposite. I mostly run Koralia power heads, fairly low in the tank, but aimed slightly up. This will create more water movement lower in the tank with just the amount of ripple at the surface that keeps the scum broken up.
Diana is offline   Reply With Quote Quick reply to this message

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:
Your Location. As precise as you feel comfortable with.
Security Question
While balancing on a piece of wood, two inches by four inches known as a 2x4, John and his friend Sally both spotted a dalmatian inside of a truck with sirens. The animal with John and Sally is a _ _ _?
Please select your insurance company (Optional)


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
Display Modes

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

Forum Jump

All times are GMT. The time now is 06:18 PM.

Powered by vBulletin®
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012