I bought a 3G Marineland/Eclipse system aquarium on 8/15 @ Petco.
They said to just let it run for 2 days & it would be safe for Danios.
I bought 3 Danios on 8/18, and a week later one died.
I used the Tetra Tap Water treatment.
I didn't know about cycling/ test kits, but when I tested it on 25th,
it was SUPER HIGH ammonia. (API master test), the PH was
7.8. I did a 50% water change w/ filtered/conditioned water.
Since then I've been doing a 25-50% change daily. Ammonia
is slowly going down. I also cut back on food.
The 2 remaining Danios are now not hanging torward the top,
and eating from the bottom more.
I starting putting in AmQuel+ in on 8/29 & lowered the water so the filter
made more water bubbles since AmQuel+ lowers oxygen.
Today it's still 1 maybe a little higher.
I bought a 10G because I now know 3G is too small for Danios.
Today the local small pet store would not let me have any of their "established
media" to help cycle my 10G. :( They said the pure ammonia method (that I planned on) is stupid
and "water/air had enough bacteria in it for good bacteria to grow". This goes against everything I've learned since & I am mad they didn't give me any. They also bashed the cocktail shrimp method.
Their temp is 78. Whats the best way to prep the 10G & fix the 3G?
They look active and eat better since I switched their food to Aqueon Tropical Flakes.
Thank you for your guidance & sorry this is so long !