[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4738: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3843)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4740: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3843)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4741: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3843)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4742: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3843)
Fish Tank Forum • View topic - Algae - Causes and Solutions
Close

We use cookies. By browsing our site you agree to our use of cookies. Find out more

FAQ Login

AquaRank.com
The Fish Tank Forum is no longer allowing posting of any kind or new members to register.
All visitors can still join the group discussion which has been moved to Facebook.
Fish Tank Forum will be remaining here for reference purposes only.

I just want to say thank you to everyone who took part in the forum over the years and I hope to see you all on our Facebook group.

Algae - Causes and Solutions

Articles on general fish keeping

Algae - Causes and Solutions

Postby Jack Middleton » Wed Jul 06, 2011 9:39 pm

This guide is aimed mainly at planted set ups but the techniques can be transferred to some standard freshwater set ups as the principles are generally the same.

There are many different types of algae that occur within an aquarium, and it is a common misconception that excess Nitrate and or Phosphate cause algae, the actual causes are generally excess light, fluctuating CO2, Ammonia, poor circulation and filtration and lack of nutrients.

Types of Algae

Hairy Algae's:

Black brush algae (BBA):

BBA generally occurs on the leaves of plants, equipment and in areas of the tank where circulation is poor, a combination of poor circulation and CO2 favour the growth of this algae. It is easily treated however, in a high tech tank ensure that your injected CO2 remains at a steady 30Mg/L whilst the lights are on, to measure CO2 concentration use a drop checker filled with 4DKH water and a few drops of bromothymol blue, lime green is the colour you're aiming for, yellow is bad and your fish will probably suffer before the drop checker has time to become yellow (There is a lapse of about 2 hours), so increase with caution, blue means too little CO2. Increasing circulation generally helps also as distribution of CO2 in a high tech tank is vital if you're wanting to keep your plants healthy and avoid algae, so don't be scared to add powerheads, Hydor Koralia's are good models, their flow isn't concentrated but is evenly spread, you should aim for about 10-15x turn over in terms of LPH relative to the volume of the tank, your filter can be included in the number. (N.b that on filter models other than Eheim the stated flow rate should be halved to give you a good idea of actual flow) When eradicating this algae you should start by removing as much as possible and doing a complete 3 day black out if you feel that it is necessary. Glutaraldehyde or a form of liquid carbon is an algaecide and can be useful when trying to eradicate algae, it should not be used as a long term solution however. Water Changes should be performed daily when eradicating algae in order to remove any algal spores and metabolic plant products which may encourage the algae's return.

Cladophora or Blanket Weed:
This algae feels rough to the touch and is a filamentous algae, it is caused by low nutrients, poor CO2 and poor circulation, the latter two are generally related however. Use the same remedies as per Black Brush Algae.

Oedogonium:
Another filamentous algae that is caused and should be treated in the same way as Black Brush Algae and Cladophora. It is often eaten by Siamese Algae Eaters, Amano Shrimp and some Liverbearers.

Rhizoclonium:
Is a soft, hairy slimy to the touch algae, treat as per the instructions for eradicating Black Brush Algae.

Staghorn Algae:
A dark brown hairy algae which usually has a red tinge, it is branched generally also, treat in the same way as you would for Black Brush Algae

If you've read everything in the Hairy Algae's sub section, you've probably come to the conclusion that they all share similar causes and can be treated in similar ways.

Soft Algae:

Diatoms or Brown Algae:
Diatoms are extremely common in new set ups, the sole cause is always too much light and ammonia, you don't even have to have traceable concentrations of ammonia for it to occur, most hobby test kits aren't of a high enough accuracy in order to detect the concentrations which cause Diatoms, treatment is relatively simple, increase circulation, perform regular water changes and reduce your photo-period.

The reason they occur in new set ups is due to the immaturity of the bacterial colony that is dealing with the ammonia, fluctuations are common and are the biggest trigger of algae. Regular water changes should be performed whilst eradicating this algae

Green Dust Algae:
Again common in new set ups, and can also occur in more mature set ups as a result of low phosphate, the best thing to do is to let it run it's full cycle, it will become unsightly in this time but if you leave it for a month and then remove as much as possible with a credit card or similar tool then it should pretty much eradicate and exhaust itself. When you remove it manually perform a large water change afterwards to remove any algal spores.

Other Algae's:

Green Spot Algae:
Low Phosphate levels generally encourage this form of algae, poor circulation and excessive light are also large contributors, if you're dosing EI then you can increase phosphate levels by increasing the mass of Monopotassium Phosphate you add to your solution relative to the volume, or increase your current dosing.

Green Water:
Often gives the water a green hue, it can be so little as a tint, or virtually opaque, it is a unicellular algae and ammonia is generally the sole cause, however lacking nutrients and unstable CO2 can cause it also, treatment is simple, large water changes to remove as many spores as possible twinned with fixing the cause, which in most cases is increasing your dosing to fix the nutrient imbalance. This shouldn't be confused with bacterial blooms. Some people use UV sterilisers but I advise against this, as they only fight the problem and not the cause, also they can mask other issues and weaken a fish's immune system due to the lack of exposure to pathogens.

Rogue Algae

Cyanobacteria or Blue-Green Algae:
As it's name suggest it is a photosynthetic bacteria not algae, but can be treated in the same way that algae is, the main causes are low nitrates, poor circulation and too much light, unstable CO2 can contribute too. Treatment is easy, manually remove as much as possible and then do a 3 day black out, no peeking at all! The tank must remain in total darkness, the fish will be fine without food for 3 days, then do a large water change, if some is still remaining, do another 3 day black out and then do a large water change and fix the original cause.

I hope this article is of benefit to others, I will be writing more in the future on CO2, Nutrient Dosing, Cycling Planted Aquaria, Low Tech Methods, High Tech Methods, Lighting, Substrates etc.
Last edited by Jack Middleton on Thu Jul 07, 2011 1:40 pm, edited 1 time in total.
Jack Middleton
Member
Member
 
Posts: 396
Joined: Wed Jun 08, 2011 3:42 pm

Re: Algae - Causes and Solutions

Postby malakye » Wed Jul 06, 2011 9:49 pm

Great write up, thank you for that.
Image
User avatar
malakye
Site Admin
Site Admin
 
Posts: 11469
Joined: Wed Feb 18, 2009 11:03 pm
Location: Scotland

Re: Algae - Causes and Solutions

Postby mucklelass » Wed Jul 06, 2011 10:11 pm

A super resource.
Image
mucklelass
Donator
Donator
 
Posts: 1448
Joined: Sun May 30, 2010 8:07 pm
Location: Edinburgh

Re: Algae - Causes and Solutions

Postby Big Den » Thu Jul 07, 2011 7:39 am

Good write up Jack, you may want to check the statement about the 'drop checker' should that not read; drop checker becomes 'lime green' and not 'yellow'?
Image
User avatar
Big Den
Member
Member
 
Posts: 2383
Joined: Tue Jul 28, 2009 7:42 pm
Location: Epsom, Surrey

Re: Algae - Causes and Solutions

Postby Jack Middleton » Thu Jul 07, 2011 7:57 am

Jack Middleton
Member
Member
 
Posts: 396
Joined: Wed Jun 08, 2011 3:42 pm

Re: Algae - Causes and Solutions

Postby Anita » Thu Jul 07, 2011 8:47 am

Nice article Jack.
Marley Image Be young, be foolish, but be happy...The Tams-1965 Image
User avatar
Anita
Donator
Donator
 
Posts: 2972
Joined: Thu Feb 26, 2009 8:39 am
Location: Plymouth, Devon UK

Re: Algae - Causes and Solutions

Postby Mick » Thu Jul 07, 2011 9:36 am

Great article to add to the forum, any more? :-):
Image



Welcome to the friendliest forum on the net!!!

Follow us on facebook-Fishtankforum Ftf or twitter-fishtankforum!!
Mick
Member
Member
 
Posts: 9365
Joined: Wed Feb 18, 2009 8:28 pm
Location: Newark,Notts

Re: Algae - Causes and Solutions

Postby Big Den » Thu Jul 07, 2011 10:04 am

Image
User avatar
Big Den
Member
Member
 
Posts: 2383
Joined: Tue Jul 28, 2009 7:42 pm
Location: Epsom, Surrey

Re: Algae - Causes and Solutions

Postby Anita » Thu Jul 07, 2011 1:11 pm

Here's a pretty good pic of what you should aim for.

Image
Marley Image Be young, be foolish, but be happy...The Tams-1965 Image
User avatar
Anita
Donator
Donator
 
Posts: 2972
Joined: Thu Feb 26, 2009 8:39 am
Location: Plymouth, Devon UK

Re: Algae - Causes and Solutions

Postby Jack Middleton » Thu Jul 07, 2011 1:39 pm

I agree Big Den, thanks, I will amend it.
Jack Middleton
Member
Member
 
Posts: 396
Joined: Wed Jun 08, 2011 3:42 pm


Return to Articles



Who is online

Users browsing this forum: No registered users and 5 guests


TermsPrivacyCopyrightCookies
Join our facebook group
cron