Fluval Canister Filter Spray bar - Tropical Fish Keeping - Aquarium fish care and resources
Reply
 
LinkBack Thread Tools
post #1 of 16 Old 08-27-2011, 03:05 PM Thread Starter
New Member
 
Fluval Canister Filter Spray bar

So I'm thinking of ordering Fluval External Canister Filter Spray Bar Kit A-235 (a spray bar) to help with film on the top of the water but also have an easier flow for my plants.

What's the best position and direction of this attachment? I just upgraded to a normal 55g (from my 55g tall) so I'm looking to make some changes.

Thanks!
yodapoolman is offline  
The Following User Says Thank You to yodapoolman For This Useful Post:
avraptorhal (04-26-2013)
Sponsored Links
Advertisement
 
post #2 of 16 Old 08-27-2011, 04:54 PM
TFK Moderator
 
Romad's Avatar
 
Definately pointing to the water surface for freshwater and plants.

Animal testing is a terrible idea; they get all nervous and give the wrong answers.
Romad is offline  
post #3 of 16 Old 08-27-2011, 06:35 PM Thread Starter
New Member
 
So should I then position it length-wise just below the surface and have it pointing up?
yodapoolman is offline  
post #4 of 16 Old 08-28-2011, 11:49 AM
Member
 
Byron's Avatar
 
You may have to fiddle with it a bit. I find that when the holes are directed straight into the end glass (and the spraybar should be placed along the end wall of a tank, just below the surface, and at the end opposite to the filter intake if possible) you can get a slight flow across the surface but the main flow goes down the wall. You do not want the holes directly across the surface because this will be too much surface disturbance (for planted tanks) and inadequate movement down through the tank.

Fish species also have a bearing, and floating plants of course.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
post #5 of 16 Old 08-28-2011, 04:20 PM
TFK Moderator
 
Romad's Avatar
 
I have it pointed toward the water surface but not completely if that makes sense. Just enough to break the surface but my plants don't reach the top of the tank yet. What Byron said makes good sense.

Animal testing is a terrible idea; they get all nervous and give the wrong answers.
Romad is offline  
post #6 of 16 Old 08-28-2011, 06:46 PM
New Member
 
marlin's Avatar
 
Byron, what effect does surface disturbance have on a planted tank?

55G Planted

10 Black Skirt Tetras

10 Neon Tetras

1 Siamese Algae Eater

6 Platies

2 VT Betta & 1 CT Betta

Nova Extreme T5HO 2x54 1 TrueLumen 12,000K White, 1 TrueLumen Flora Freshwater



http://www.fishtanks.net/fishtank.php?fishtank=3962
marlin is offline  
post #7 of 16 Old 08-28-2011, 08:42 PM Thread Starter
New Member
 
If I'm not mistaken, it disrupts the gaseous exchange between O2 and CO2. Plants need the CO2 and give off the O2. So when the surface is agitated, more O2 is added, or maybe it's that the CO2 is "released" due to the agitation.

Just my basic understanding but I'm sure Byron will correct any false aspects and add a lot more professional insight :)
yodapoolman is offline  
post #8 of 16 Old 08-28-2011, 09:54 PM
yeah - surface agitation evidently is not very helpful for the plants but i've always had luck with bubbles and plants, i put a stone near the roots of a plant and the plant grows like crazy for the weeks i leave it there.

You could get the contraption that takes air and puts CO2 in the water, although i have no idea how good those are at actually putting CO2 in the water.

Byron told me to shut off surface agitation at night (i think) and if i must have it, use it during the day. I'm thinking of putting the air pumps and lights on a timer circuit to achieve that end on my larger tank.
genewitch is offline  
post #9 of 16 Old 08-29-2011, 09:28 AM
Member
 
Byron's Avatar
 
As others have correctly pointed out, surface disturbance drives CO2 out of the water before plants can fully use it; it also brings more oxygen into the water, which can also be detrimental to plants. [I explain this more in my article "A Basic Approach to the Natural Planted Aquarium" at the head of the Aquarium Plants section.] Assimilation of CO2 from the water through the leaves of aquatic plants takes longer than it does in air, about 4 times longer, so driving the CO2 out is only removing valuable nutrients for the plants.

As for airstones, they should not be used night or day in planted tanks. If you add CO2 via diffusion during the day, an airstone at night can help to dissipate excess CO2, but that is another matter entirely.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
post #10 of 16 Old 08-29-2011, 06:30 PM
New Member
 
marlin's Avatar
 
I have a little movement at the surface from my hob filter, should I be concerned about the little movement it is creating?

Here are videos of my surface water movement.



55G Planted

10 Black Skirt Tetras

10 Neon Tetras

1 Siamese Algae Eater

6 Platies

2 VT Betta & 1 CT Betta

Nova Extreme T5HO 2x54 1 TrueLumen 12,000K White, 1 TrueLumen Flora Freshwater



http://www.fishtanks.net/fishtank.php?fishtank=3962
marlin is offline  
Reply

Tags
canister , fluval 305 , spray bar , water flow

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Fluval 205 canister for a 29 gal tank? JimBinSC Freshwater Aquarium Equipment 1 07-03-2011 07:33 AM
"spit back" with Fluval 305 canister water change yodapoolman Beginner Freshwater Aquarium 9 06-21-2011 05:47 PM
Noisy Fluval Canister Bazil Freshwater Aquarium Equipment 2 04-29-2010 06:15 AM
Canister filter,Fluval 405? Rfraser Saltwater Aquarium Equipment 2 03-09-2007 05:53 PM

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

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