Bog filter and treating blanketweed

Joined
Jun 9, 2021
Messages
41
Reaction score
19
Country
United Kingdom
Hi.
My pond is now over a year old and now in summer here in the UK the bog plants are going crazy!
I have some issues with blanketweed in the pond and would like to know what you guys do to control it please?
Thanks
 
Joined
Mar 5, 2014
Messages
2,516
Reaction score
2,999
Hardiness Zone
7b
I think blanketweed is a form of algae, correct? Do you have a lot of fish for the size of your pond? Excess algae growth is almost always caused by excess nutrients in the water (fish waste, decaying plant matter, etc.)
If you would, please share the size of your pond, how many fish, what kind and size of filtration you have -- and pictures are great, too! There are so many people on here who are very knowledgeable. I know others will be able to give good advice!
 
Joined
Jun 9, 2021
Messages
41
Reaction score
19
Country
United Kingdom
Roughly around 6000 litres with only 8 fish mostly goldfish which are small and 3 larger 8” ones.
Pond is filtered by a bog with pea gravel 12” deep and full of monkey flowers, iris and creeping Jenny.
Depth is 800mm and in full sun from early morning to late afternoon.
I don’t overfeed in fact I’ve just started feeding them after winter.
I’ve tried cloverleaf blanket answer which helped to some degree.
I ran some tests last night. Nitrite 0. Ph 7.5
Ammonia 0 but Phosphate a little high which is weird
 
Joined
Dec 16, 2017
Messages
13,380
Reaction score
10,480
Location
Ct
Showcase(s):
1
Hardiness Zone
6b
Country
United States
How big is your bog . How many gph are you pushing through the bog. Is there any circulating pumps in the pond
 
Joined
Jun 9, 2021
Messages
41
Reaction score
19
Country
United Kingdom
Bog is about a 1/4 size of the pond.
Have a 10000L pump with one outlet to the bog and one entering back into the pond the opposite end for some circulation. I also have a satellite strainer connected to the pump opposite end of the pump.
I have the feed to the bog regulated by a valve so I’m guessing 4-5000 Ltr per hour through the Bog.
I do have large pebbles on the pond base which you can see from attached pictures.
 

Attachments

  • 725F5929-3607-4E46-9E72-1F70F581E0C0.jpeg
    725F5929-3607-4E46-9E72-1F70F581E0C0.jpeg
    267.3 KB · Views: 30
  • 800F46D4-E00F-4D52-8B9B-9B67E77A97E6.jpeg
    800F46D4-E00F-4D52-8B9B-9B67E77A97E6.jpeg
    215.7 KB · Views: 32
  • 1A6B4B2B-90D5-4C36-990F-08F310EBD11B.jpeg
    1A6B4B2B-90D5-4C36-990F-08F310EBD11B.jpeg
    298.2 KB · Views: 31
  • A1864E94-855D-491C-BC72-564E513420C6.jpeg
    A1864E94-855D-491C-BC72-564E513420C6.jpeg
    254.2 KB · Views: 35
  • 0C9C521F-B809-40AA-AE96-7DEBDC0D421E.jpeg
    0C9C521F-B809-40AA-AE96-7DEBDC0D421E.jpeg
    186.3 KB · Views: 32
Joined
Apr 1, 2021
Messages
256
Reaction score
182
Location
Carlsbad, CA
Showcase(s):
1
Hardiness Zone
10a/sunset zone 23
Country
United States
Bog is about a 1/4 size of the pond.
Have a 10000L pump with one outlet to the bog and one entering back into the pond the opposite end for some circulation. I also have a satellite strainer connected to the pump opposite end of the pump.
I have the feed to the bog regulated by a valve so I’m guessing 4-5000 Ltr per hour through the Bog.
I do have large pebbles on the pond base which you can see from attached pictures.
I'm not seeing any algae? I assume these aren't recent photos?
 

mrsclem

mrsclem
Joined
Jul 21, 2008
Messages
5,351
Reaction score
4,810
Location
st. mary's county, md.
Hardiness Zone
7A
Country
United States
Was just posting the same question! A coating of green algae on the rocks and sides of pond is normal. The plants in the bog look great but there needs to be either more plants or let those grow a lot. The bog will take care of any algae. I don't see any fish so the plants may need to be fed.
 
Joined
Jun 9, 2021
Messages
41
Reaction score
19
Country
United Kingdom
Sorry guys they are earlier pics just to give you some idea of size. I’ll take a few more thank you
 
Joined
Jun 9, 2021
Messages
41
Reaction score
19
Country
United Kingdom
As you can see some treatment has stopped more growth for now but you can see some in there. Maybe I’m worrying too much.
I want to add some more fish soon as I know somebody selling some Koi.
 

Attachments

  • 49C2734B-C560-404B-A3AE-A34FE7D11224.jpeg
    49C2734B-C560-404B-A3AE-A34FE7D11224.jpeg
    355 KB · Views: 30
  • 85E480FA-FD7F-47BA-BD7D-CB523B612AD7.jpeg
    85E480FA-FD7F-47BA-BD7D-CB523B612AD7.jpeg
    373.4 KB · Views: 29
  • E9DB5D4F-D1A5-427A-B9AB-4BB909FE01E5.jpeg
    E9DB5D4F-D1A5-427A-B9AB-4BB909FE01E5.jpeg
    284.9 KB · Views: 31
  • 4C7AF781-5D80-467A-B3FD-BA413A9BE73E.jpeg
    4C7AF781-5D80-467A-B3FD-BA413A9BE73E.jpeg
    256.9 KB · Views: 30
  • 50DE2631-BA0D-4600-B58D-E1378653A3F1.jpeg
    50DE2631-BA0D-4600-B58D-E1378653A3F1.jpeg
    216.9 KB · Views: 33
  • 5C8477C8-BE02-44F0-A6DA-988308EEC283.jpeg
    5C8477C8-BE02-44F0-A6DA-988308EEC283.jpeg
    342.3 KB · Views: 32
Joined
Apr 1, 2021
Messages
256
Reaction score
182
Location
Carlsbad, CA
Showcase(s):
1
Hardiness Zone
10a/sunset zone 23
Country
United States
As you can see some treatment has stopped more growth for now but you can see some in there. Maybe I’m worrying too much.
I want to add some more fish soon as I know somebody selling some Koi.
a coating of algae on rocks and such is normal and to be expected, they won't stay pretty like when they were new. And some string algae is common in the spring, but elevated phosphates would definitely encourage it. Most of the expert ponders in this group (I am not one) strongly recommend against ever using chemical algaecides as they can cause serious problems, I'm sure some of them will chip in more on that. Your phosphates could be elevated from excess fish food, maybe?
 
Joined
Jul 12, 2009
Messages
3,990
Reaction score
2,682
Location
Mount Pocono, Pennsylvania
Hardiness Zone
6a
Is this algae an on going thing?
Because most of us get a algae bloom in the Spring. It takes time for the beneficial bacteria and plants to wake up from winter. It's a slow process.

I normally have crystal clear water with my bog filtration, but even my pond gets murky in the Spring.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Members online

No members online now.

Forum statistics

Threads
30,780
Messages
508,553
Members
13,042
Latest member
lucaryan

Latest Threads

Top