Jump to content
Crys

algae floating on top of aquarium

Recommended Posts

Crys

Hi I have what looks like green algae floating on the top of my tank.  It's not suspended in the water just on the top. It leave a green scum on nets or pipettes   I have very little algae elsewhere.  Tank has good circulation.  How do I get rid of it and is it harmful to fish, inverts or coral?  Thanks

Share this post


Link to post
LazyFish

Surface skimmer,?

 

Share this post


Link to post
Crys

No I don't have one.  My tank is 13 gal.  I have had it for 3 years and never had this before.

Share this post


Link to post
Clown79

Can you get a pic?

 

What are your nitrate and phos levels? 

 

What does the algae look like?

Share this post


Link to post
seabass

I take a small container (like a measuring cup) and hold it upright, with a lip just under the water line, to suction the surface water out (along with any films that might be accumulating). Do it a few times and you'll get the hang of it.  if it's much more than a film, I'd use a brine shrimp net to scoop it out.

 

Going forward, it might help a little to get some better surface agitation.  You might try pointing a powerhead slightly upwards, and/or moving the powerhead up higher.  You might also look at what you are feeding and/or dosing (along with your nutrient levels , as Clown79 suggested).

Share this post


Link to post
Clown79
8 hours ago, seabass said:

I take a small container (like a measuring cup) and hold it upright, with a lip just under the water line, to suction the surface water out (along with any films that might be accumulating). Do it a few times and you'll get the hang of it.  if it's much more than a film, I'd use a brine shrimp net to scoop it out.

 

Going forward, it might help a little to get some better surface agitation.  You might try pointing a powerhead slightly upwards, and/or moving the powerhead up higher.  You might also look at what you are feeding and/or dosing (along with your nutrient levels , as Clown79 suggested).

I'm curious to see it.

 

When my tank had dino's, before i even knew it was dino, it first started with odd algae floating at the surface.

 

I had no idea what it was or why it was happening until a few weeks later when it was everywhere

 

 

  • Like 1

Share this post


Link to post
seabass
8 minutes ago, Clown79 said:

When my tank had dino's, before i even knew it was dino, it first started with odd algae floating at the surface.  I had no idea what it was or why it was happening until a few weeks later when it was everywhere

Dinos is certainly a possibility.

Share this post


Link to post
Clown79
3 hours ago, seabass said:

Dinos is certainly a possibility.

I hope we can see a pic of the situation. 

  • Like 2

Share this post


Link to post
Zer0

Cyano can also break off and float at the water surface, and cyano can be green too, so it could even be that as well. 

  • Like 1

Share this post


Link to post
seabass

At this point it's hard to say.  I assume it's not any form of macroalgae.  We might even need more than a regular pic to properly ID it.  It'd be nice to get a sample under a microscope.

  • Like 2

Share this post


Link to post
Crys

Hi Thankyou for the replies, I was away for a few days, I will get a picture today.  

Share this post


Link to post
Crys

Hi,

 

I went to take the picture yesterday and the green scum was all gone.  It had been there for at least 3 weeks. I am not sure what was different while I was away but it has cleared up completely.  I hope that means it's gone and not just waiting to bring back friends.  Do you think there is anything else I should do?

 

Thanks

Share this post


Link to post
Murphych

I think we are good for now. Sit back and enjoy 👍🏼

Share this post


Link to post

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recommended Discussions

×
×
  • Create New...