Hair algae?

1981 Views 8 Replies 2 Participants Last post by hoppycalif, Apr 20, 2020

JJJ

Discussion Starter · Apr 16, 2020

Hi all,

A week ago started having staghorne algae...

Terrestrial plant Underwater Marine biology Grass Water

I read it was due to lack of flow or poor co2 distribution so I installed a power head.

Plant Water Plant community Botany Pet supply

After a week staghorn has stopped growing up but it has appear hair algae (I believe)...

Water Plant Natural landscape Terrestrial plant Liquid

Plant Terrestrial plant Water Tree Tints and shades

Any help/adviced will be much appreciated.

Thanks!

See less See more

Save

1 - 9 of 9 Posts

hoppycalif

· #2 · Apr 16, 2020

Can you provide more information about your aquarium? Lighting, substrate, tank size, fertilizing, CO2, etc.? That might suggest some problem to some of us.

Save

JJJ

Discussion Starter · #3 · Apr 18, 2020

hoppycalif said:
Can you provide more information about your aquarium? Lighting, substrate, tank size, fertilizing, CO2, etc.? That might suggest some problem to some of us.

Sorry for the late reply.

Planted date 1/03/2020

230 litres 92x50x50

Seiryu stone and some wood.

Substrate : Help plants

Light: 2 White led lamps, (total 100 Watts and around 11125 lm).
7h per day

Filter jbl 1501 with 2 kg matrix + 100 ml purigen

Water change: Weekly 50%
I use 100%RO water without remineralise as I have seiryu stone and after 12h I get:
TDS 120
Kh 4
Gh 6

Co2 30 ppm during the light period

Fertilising Every day:
2 ppm NO3 (with KNO3)
0.5 ppm Po4 (with PH2PO4)
( K included in the KNO3 salt)
2ml propel
4ml envy
8ml Excel or easycarbo

Other equipment:
Skimmer eheim 350
Ph CONTROLLER
Auto Dosing pump
Magnetic agitator

Recent changes:

Added Power head circulation pump to increase water flow.
Removal of Sera co2 reactor 500 to increase water flow.
Added co2 neo aquaRio difuser installed.

Due to poor nutrients in the last measure I did before the last water change (no3 2 ppm, Po4 0,3ppm) I have decided to increase 50% of the N & P.

Plant Terrestrial plant Natural landscape Trunk Grass

Plant Plant community Organism Terrestrial plant Vegetation

See less See more

Save

hoppycalif

· #4 · Apr 18, 2020

How do you determine how much CO2 you have in the water?

Save

JJJ

Discussion Starter · #5 · Apr 19, 2020

hoppycalif said:
How do you determine how much CO2 you have in the water?

Measuring de ph and kh, and then using a calculator or a graphic

Font Screenshot Electronic device Circle Gadget

Colorfulness Rectangle Font Screenshot Parallel

See less See more

Save

hoppycalif

· #6 · Apr 19, 2020

That chart is not a good way to determine how much CO2 you have in a typical aquarium. The chart is very accurate only if the water has nothing in it that affects the pH or KH except CO2 and carbonates/bicarbonates. A better method is to take a sample of the water in your tank let it sit around long enough to degas the CO2 in it, then measure the pH of that water. Compare this pH to the pH of the tank water a few hours after the CO2 is turned on. The ppm of CO2 you have will be about 3 time 10 raised to the decrease in ph power. For examples: if the pH in the tank is 1.0 lower than in the degassed water, you have 3 x 10, or 30 ppm. If the pH in the tank is 0.8 lower than the degassed water, you have 3 x 10 to the .8 power, or 20 ppm. I will bet that you have less CO2 in the water than you think.

Save

JJJ

Discussion Starter · #7 · Apr 19, 2020

So just before the co2 is switched off I have a ph around 6.5 and next day in the morning, just before the lights turn on I have Ph of 7.0

Does it mean that I have just 15ppm so I should increase CO2 level to go near to 30 ppm?

I realised also that when the kh is 3.5-4 the ph difference is 0.5

However as I am getting close to the water change my kh increase until 6 due to the seiryu stone, then the difference is just 0.2 but I put same co2 in the water...

Save

JJJ

Discussion Starter · #8 · Apr 19, 2020

I just did (twice) also the jbl co2.
According to it I have between 30-40 ppm, I couldn't say.

See less See more

Save

hoppycalif

· #9 · Apr 20, 2020

JJJ said:
So just before the co2 is switched off I have a ph around 6.5 and next day in the morning, just before the lights turn on I have Ph of 7.0

Does it mean that I have just 15ppm so I should increase CO2 level to go near to 30 ppm?

I realised also that when the kh is 3.5-4 the ph difference is 0.5

However as I am getting close to the water change my kh increase until 6 due to the seiryu stone, then the difference is just 0.2 but I put same co2 in the water...

The CO2 content in the tank, after a night of no Co2, isn't necessarily 3 ppm, but could be 4-5 ppm, which would mean you have a lot more than you think. I like the idea of isolating a cup full of water over night or longer better.

Save

1 - 9 of 9 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month