Lasses Dream Build

[Lasse]

I see the pump side piping on the outlet side am I correct?

Correct - flow from up and down

Sincerely Lasse

 

[Lasse]

Now I have run my experiment for 1 day without adding any etanol to my filter, My PO4 - still at 0.22 mg/L but the growth of bacteria is lesser

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Sincerely Lasse

 

[Lasse]

Todays update PO4 = 0,23 mg/L

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Filter - 2 days

Sincerely Lasse

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[Lasse]

A comparison with 1 ml vodka a day and no vodka. Maybe its not as large visual differences between this two runs but what is different is that the flow in the first run had decreased a lot after 4 days but not as large decrease in the control run- Its still a decent flow in the control run after 6 days but I had to quit the 1 ml run after 4 days because of nearly no flow- The las picture in the control run is from the evening of 28/5 - all the others - in the morning each day

I´ll comeback with the PO4 concentration after this days test later on

Sincerely Lasse

 

[That Crusso Kid]

A comparison with 1 ml vodka a day and no vodka. Maybe its not as large visual differences between this two runs but what is different is that the flow in the first run had decreased a lot after 4 days but not as large decrease in the control run- Its still a decent flow in the control run after 6 days but I had to quit the 1 ml run after 4 days because of nearly no flow- The las picture in the control run is from the evening of 28/5 - all the others - in the morning each day

I´ll comeback with the PO4 concentration after this days test later on

Sincerely Lasse

I'm curious. Are you weighing the filter floss before adding it to the reactor?

 

[Lasse]

Phosphate rather stable during this time . Between green arrows - no vodka

Flow rate after 6 days

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No - I can´t figure that out - how to do it and get only the weight of the bacteria. Maybe to take the dry weight of the floss and when I change it - dry the floss in the oven for 24 hours and take new weight but I must be sure - not to get the weight of the water in the calculations. I have a sensitive scale - 0.01 gr. in this case - I maybe can get the dry weight of the bacteria. However - the risk for a miscalculation is huge- for now - no independed method to qualify the method.

Sincerely Lasse

 

[Lasse]

Another experiment I have run during this spring is to figure out how my total system works according pH and indirectly - how CO2 increase and decrease in my aquarium.

I configure my skimmer to go down to 10% when the pH goes above 8.50 (don't focus on the number - that's where my pH meter says I am - no idea if that's true or not, but the important thing in this experiment is to see how the pH changes due to the presence of CO2 in my aquarium). I also use a CO2 trap and outside air. The reason why I want it to stop at pH 8.5 is because IMO - its better that the photosynthesis has some CO2 to work with compared to if the skimmer work 100 % and compete with the corals about the CO2. Of cause you could use 8.4 as switch point, hence more CO2 to the corals (read zooxanthellae)

Things I found

The skimmer is important for me in order to transport out CO2 during non light period. Its about 0.1-0.2 pH units - if the CO2 scrubber works as it should. If it is exhausted - pH dropp fast during night - see the arrows

When the skimmer go down to 10 % around 8.50 - CO2 in the room and internal CO2 production is enough to have it stable around 8.5 if the CO2 scrubber works 100 % Light red square - CO2 media is not working Red arrows - change of CO2 media

the black staples shows time the skimmer is at 100 % - no black marking - skimmer 10%. GHL has a type of PID regulator you can use around a nominal value. When the read value approach the nominal value - the switch is on for shorter and shorter time. The switch is the one I use in the intelligent pump program - every time its on - the pump run 100 % - standard 10 %. I love I can do things like this without coding

I have run this for 2 - 3 months now and will go down to 8.40 as wanted pH from today. I have been steady in Ca and alk consumption during this time.

Sincerely Lasse

 

[Lasse]

Today PO4 - 0.21 mg/L

I WAN´T it to be a thicker bacteria film and lesser flow - but honestly - I do not really know if it is thicker or not

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Sincerely Lasse

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[Lasse]

Late report from yesterday. PO4 has stabilized around 0.21.

Yesterday - I took 2 readings - early morning and late evening after the last feed.

It still a good flow and the bacteria is growing - this time I will not change any of the wadding before the flow gets very low.

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Sincerely Lasse

 

[Lasse]

Today measurements - PO4 - 0.23 mg/L

Filter flow

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Bacteria growth

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Sincerely Lasse

 

[Lasse]

Today 10:00 O´clock - PO4 0 0.23 mg/L

Filter and flow

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This filter has run for 10 days now and with no addition of Vodka day 1-5 and with 1 ml/day the rest of the time. The phosphate has been 0.22 ±0.01 mg/L most of the days since may 21. One exception - may 27. The methods accuracy is ± 0.02 mg/L

Sincerely Lasse

 

[Lasse]

Today - 0.18 mg/L

Filter

Sincerely Lasse