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Green film on the surface

Midnight

Member
Joined
2 Sep 2008
Messages
48
Location
North Yorkshire
Help
I came home after a few days away to find a green film on the surface of the tank. What kind of algae is it?
I did a 50% water change but it's still there.
Flow around the tank is strong
The CO2 level seems OK - lime green drop checker
 
Superman said:
Green surface algae shows that you have poor circulation and poor co2.
What water are you using in the drop checker? Is it 4dkh?
Use paper towels to remove it, put one down and then another half covering as you'll need to catch the film between the two.

Yes 4dkh from AE
Circulation is good the plant sway in the flow
CO2 has been flunctuating a bit since I changed the bottle - BBA is back too
 
Midnight said:
Superman said:
Green surface algae shows that you have poor circulation and poor co2.
What water are you using in the drop checker? Is it 4dkh?
Use paper towels to remove it, put one down and then another half covering as you'll need to catch the film between the two.

Yes 4dkh from AE
Circulation is good the plant sway in the flow
CO2 has been flunctuating a bit since I changed the bottle - BBA is back too

Might be a daft question.. using the right reagent in the drop checker? Once I used the wrong one!
 
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