First, austinspeer, welcome to Tropical Fish Keeping forum.
Second, I came across your two threads which really are about the same issue so I merged the later thread into this one. It is best to keep only one thread going on a specific topic; this way all members see what other members have posted, and you will get a better response that will be unified.
Now to the issue. And the first thing is never, never use these various chemicals to solve problems like algae, cloudy water, etc. The cause for the problem has to be identified, and then appropriate action taken to resolve it, if that is what is needed. Any of these chemicals (which may or may not work to begin with) do have detrimental effects on the fish. I won't go into all that now, as I want to get to the problems in order to help you and your fish.
Cloudy water is common in new tanks. You haven't indicated how long this tank has been set up, but this is one probable. Tearing the tank down and "cleaning" as you describe is going to drastically affect the biological system and this too is almost certain to cause cloudiness. Neither of these types is related to algae. Whitish cloudiness is most often due to a sudden increase in various bacteria in the water. This will naturally clear on its own, if other things are balanced; it looks unsightly, but it has to be left alone.
No indication is given of water changes, but these should be regular, once a week is normal, changing 1/3 to 1/2 the tank volume. Use a good water conditioner, nothing else. Also no indication of tap water parameters (GH, KH, pH) but I will assume the tank and tap are close in these.
To the fish, which is going to be a big problem. At this point, I will point you to our profiles section, under the second tab from the left in the blue bar across the top of the page. If the name is used in a post exactly as it appears in the profile (common or scientific) it will shade and you can click that name for the pop-up profile. Data on water parameters, minimum tank size, number of fish for shoaling species, compatibility, etc is in the profiles.
Shoaling fish must be in a group. Silver Hatchetfish is one of these, please read the profile. Pictus Catfish is another; it grows to five inches and should be in a group, requiring a much larger tank if it is to be healthy and live a normal lifespan. Check the profile.
Obviously there is insufficient room in a 10g for all these fish to be properly housed, so you need to decide which will go (returned to the store, given to other aquarists, or a much larger tank). That is your decision.