HI All, I am the person which prompted KathyDip to start this thread.
She got most of the details down however here is the complete story:
I had read through betta care on a variety of sites before purchase, and asked the fish people at the local pet store where I purchased everything. (not pet smart or wal mart)
I got a 2.5 gallon tank which came w. a small submerged filter. I made sure the filter was on the slowest setting. I used water conditioner and put in the new betta--who appeared healthier than others before the purchase. I had asked about cycling and waiting to add the fish, but was instructed that the conditioner would be fine for this type of fish. I tested the water for ph and nitrates, both were perfect, temp was 78degrees.
After 24 hours the fish seemed adjusted and fine.
The next day I brought home 3 small aquatic plants, 1 snail, and 10 ghost shrimp. (all based upon my reading). I tested the water for ph and nitrates, both were perfect, temp was 80 degrees.
Within an hour or two half of the ghost shrimp tried jumping out.
Within 12 hours the rest had jumped out (the tank did have a lid, but had a small opening in the back) or were dead inside. Only one or two remained alive. The fish had died. I tested the water for ph and nitrates, both were perfect, temp was 80 degrees.
I went to a Pet Smart and asked and they said maybe the plants + the small filter was too much?? oxygen poisoning? --I didn't know this was possible. I removed the filter.
2 days later
I purchased a new betta, named him Max, and added him.
Snail + one ghost shrimp still alive, with same 3 plants.
One week later Max is master of his domain. when I shut off the room lights at night before shutting off his tank light, he puffs up and becomes tough guy for the fish in his reflection.
I did a partial water change after 1 week. 2 days later I noticed crazy amounts of bacteria/microorganisms (looking like particles, but moving) everywhere in the tank, especially on the plants. Within 12hrs of noticing I did a complete water change and rinsed gravel and plants as well. Tank clean, Max still happy. I believe he must've ate the last ghost shrimp as it's nowhere to be found.
He totally gets along with his roommate Gilbert the aquatic snail however.
Does anyone have any insight on either the possible cause of death of the first fish, or reason for the microorganisms after the 1st partial water change. (I guess it's possible the first fish was just sick?)