All the jazz for cloudiness and ph up is junk and could possibly do more harm than good. Water changes are your best friend now, keep testing the water your goal is to maintain your ammonia as close to 0 as possible. Worry about ammonia, nitrItes and nitrAtes right now and forget ph, alk and all that other stuff for the moment. Good luck and remember water change, water change, water change![]()
What he said...
If you can get some sand/gravel/etc from an established tank, you can hang it in your tank - there are "media bags" available at Petsmart, etc. This will let it sit in your water without mixing in with your substrate. While the conventional wisdom is that most of the beneficial bacteria live in the filter media, there will be some on any hard surface within an established tank. If you can get a sponge or similar from an established tank you'll be that much better off.
The logic behind water changes is this: picture the fishes' native environment. Typically a stream, pond, lake, etc. Lots more water per fish, and definitely more water movement. In the home aquarium, we use filters to help trap dirt and water changes to simulate current and a "larger" environment for the fish. In your case, you have a toxin in the water, ammonia, that can't go anywhere because this is a closed system. Eventually, the biological filter (Mr. Beneficial Bacteria #1) will break down that ammonia, converting it to (unfortunately) another toxin, nitrite. Then we'll need Beneficial Bacteria #2 to turn the toxic nitrite into the relatively benign nitrate, until he shows up in quantity you still have a closed system that is recirculating a toxic substance.
So, in lieu of an established biofilter, you need to change the water, change the water, change the water. The stress on the fish from a water change is going to be much less than the guaranteed-to-kill them effect of a build up of ammonia and/or nitrite. Little to no bacteria lives in the water column itself, so you're not going to slow the cycle by doing water changes, and you might be able to save your fish.
To paraphrase the famed philosopher Ty Webb: "Be the [river current], Danny."
Once you get past this crisis, we can talk about the benefits of adding stock *slowly*

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