I'm Cavity Angel, the poster child of the digital divide who still doesn't know how to use Twitter and Instagram.
This time, I'll explain the process leading up to the start of the experiment.
Part 1 Pouring water
If you fill this huge tank with water up to 30cm high, it will hold over 1 ton of water alone.
I poured tap water directly into it with a hose, and initially put in 1 ton of water.
Part 2 Removing chlorine
While I was filling the tank with water, I realized I needed to remove the chlorine, so I just poured it in randomly.
Part 3 Making green water
First, I poured in a whole bottle of Hyponex for gardening into one ton of water.
This is food for the phytoplankton.
This is the tank immediately after that.
Then I poured seed water in the green water.
This room has large windows on the south and west sides, so direct sunlight pours in mercilessly.
In about two weeks, I had one ton of green water.
Part 4 Increasing daphnia
Next, I introduced daphnia.
They multiplied so much that I thought I could make a business out of them.
I had two goals in mind:
1. Making the green water transparent with daphnia
2. By leaving the water saturated with daphnia, the environment for daphnia would worsen and durable eggs would accumulate.
However, the transparency did not work.
This is because hydra have proliferated and the number of Daphnia has decreased!
Part 5 Adding bottom sand and introducing a minimum amount of aquatic plants
One of the ingenious features of this Mini-Earth is its flat shape.
This flat shape is probably the right choice for absorbing a lot of light energy and for oxygen to dissolve from the air in the tank.
Part 6 Introduction of living creatures
First, because the moss on the walls was getting really bad, I put in about 100 each of sakamaki snails(Physella acuta), red ramhorns, and dwarf snails.
I also had some river snails in other tanks, so I put some in there too.
Also, I put in about 100 amphipods in several batches.
Then I put in about 100 to 200 Japanese freshwater shrimp in several batches.
Finally, I added 500 Japanese freshwater shrimp all at once.
Part 7 Purchase of stylish aquatic plants
I have no idea which plants will survive after a few years, so I planted as many tough plants as possible.
Part 8 A problem between the overly green water and the moss on the walls
I tackled the problem against the green water by adding dwarf snails (about 400 in total), which have the ability to feed on filters, and introducing corbicula (about 300 in total).
Regardless of the aesthetic value, if it interferes with observation, it cannot be overlooked when making a Mini-Earth.
Somehow, the green water has diluted and the moss on the walls has begun to decrease.
No. 9 Adding fallen leaves
It's a bit of a cheat, but I thought that this kind of "slow-acting food" was very effective for the first year or so of the mini-earth.
When I go to rummage around, I often find shrimp swarming on the fallen leaves.
In addition, I feed them almost exclusively on fallen leaves to breed a large number of amphipods.
Part 10 Introducing 5 pairs of guppies
I have introduced them.
They are sold as Mickey Mouse guppies.
Well, I guess the more random the patterns are, the less harmful the inbreeding will be.
Part 11 Sealing ceremony
I put a lid with a gasket on the flange with a gasket and tightened it up with screws.
It took at least half a day.
After this work was completed, it looked like this, which I showed in yesterday's article.
Next article
Previous article
