Azolla Project Update 2

It has been Forty Two Days since I cleaned and added soil in my Azolla tank (January 21).  I have added a couple of buckets of water, I forgot how many buckets exactly, maybe three or four, when I noticed that the water level was getting low, last February 19, a day after my second harvest.  As for the cow dung, I only added some yesterday.  I was able to harvest three times already, including yesterday (March 11).

The pictures from January 21 to 29 are in my first Azolla update.  The following are the daily pictures from January 30 up to March 12.

Pictures 1 to 6 above are from January 30 to February 4.

My first harvest was last February 5 (15 days after planting), I took two thirds (2/3) of it, which I fed half to my Tilapia and half to the ducks.  I could have harvested since day 12 (February 02-Picture 4), but I wanted it to be thicker and greener, besides, I have a job on weekdays 😁

Picture 1 is from February 5, before the harvest, picture 2 is after the harvest.

Pictures 3 to 6 are from February 6 to 9.

Pictures 7 to 12 are from February 10 to 15.

I do not have a February 16 picture.  Picture 13 was last February 17, and pictures 14 and 15 are both from February 18, before and after my second harvest.

Picture 16 is from February 19, after I added some water.  Pictures 17 and 18 are for February 20 and 21.

Second harvest was last February 18 (13 days after first harvest), were I think I took more than Two Thirds (2/3) of the Azolla that time.  I gave some to the Tilapia, ducks and chickens, but most of the batch, I gave to my Uncle, as a starter kit, so they can also start planting, to be use as feeds to their ducks and chickens, and look, Triple A (the dog) also wants some......

I will check on their progress later, 

This is the pond that they have use to grow their Azolla, the water has a greenish color already, hope it will work.

Back to my tank.

No picture for February 22, picture 19 is for February 23, no picture again for February 24, next pictures are for February 25 to March 1.

I have used the dates of March for the pictures above, I do not have pictures for March 2 and 5.

The production from the second harvest, and a few days after it was still good (February 19 to March 06), but I think the yield was getting fewer after that  (or was this also because of over population, it was 16 days after second harvest after all).  If you would take a look at March 7 picture, they are the same, or even fewer than that of March 06.  They have probably depleted the nutrients from the cow dung, so I must add some more.  Also, it is now summer time in the Philippines, and temperature really gets so high from 11 am up to 3 pm, some days even up to 5 pm.

This was what I was thinking the night of March 10, because as of March 9, you can already notice the decrease in population, but when morning of March 11 came, I went to see how my Azolla are doing, and the picture below shows a horrific scene.  Instead of dark green, I am seeing many brown leaves.  My Azolla are dying.

(March 10 and March 11 pictures)

I took action at once.  I removed all the Azolla from the tank, and put them all in a bucket.

I measured the depth of the water, it was only five inches, I added some cow dung, and mixed.  

Then I added water, four buckets full (the green one), the water is now 11 inches deep.

After that, I added some Azolla from the white bucket.  The rest I again gave to the Tilapia, ducks and chickens.

As of today (March 12), this is how it looks.

Maybe I should add some cow dung after every harvest, and also I have to maintain the 11 inches level of water, specially this summer season.  My tank is made of metal, and it can make the water temperature higher also.  Should I put some cover to it, besides the net that I have?

I still have the Back Up Azolla, so, I need not worry if anything unfortunate happens to my main tank.

That is all for today, I hope the Azolla in my main tank would recover.