My water is foggy..

[Stumpy]

Uhhh... yes. Kind of at a loss what to do. I have a new tank, new filter and have just started cycling it (It's been nearly a week) and the water is incredibly foggy. I've been conducting accurate liquid tests and all my readings are appropriately zero'd. So basically I'm very new to aquariums, and though I've been reading, really need some help :/

I have a couple of guppies in the tank to help provide the ammonia, and I'm monitoring the water daily, there hasn't been much change. The tank currently has 110L in it, it can probably take another 20, it's not quite full, are three guppies going to provide me with the ammonia I need? I finally found the axie I've fallen in love with, kept quite meanly at a petstore, but I had to keep myself from rescuing her because I thought the tank cycling could be a bit nasty. And apparantly it is. The guppies seem to be ok. I feed them just a pinch or so of flakes every few days and clean the rest.
But my water is still extraordinarily foggy.

What I'm speculating may be the problem is water hardness, but I don't know if this can really affect it so much :/ (And it's the only part I didn't personally monitor)
I asked my boyfriend to add the aquarium salts while I wrestled with the filter. I'd already told him what needed to be added, but I think it may have been vigorously shovelled into the tank with gusto, and not the level-if-not-under teaspoons it required. Which would explain how light the container feels now :/
I love him dearly, but seeing as the finest and most delicate organism he's ever had to look after is a holden commodore....

also seeming to support my hypothesis is the build up of scale on the sides of the tank from small splashes

Just how bad an issue is this?

Oh, and how bad would it be to rescue my princess from the pet store?
I understand the quarantine issues, I've had the guppies about two weeks and have recently added them to the tank. But yeah, I'm nervous about leaving this gorgeous little axie in the big mean pet store. I tried to give the guy some tips, and they did seem to go down well, I just don't want her to end up like the poor golden one I saw someone else rescue that day .0_0. It was quite sad, he was a bit older and all peely looking. If I can fix this tank issue, I'll be going to save her asap

 

[Darkmaverick]

In the ideal situation, you should wait for the tank to be fully cycled before getting an axie. However, if you intend to keep only 1 axie in a large tank, you can actually get away with it provided you are extra vigilant with water chemistry and small water changes.

Water can appear foggy due to many things. Sometimes sandy substrate can take some time to settle. In other occasions, the cloudiness may be due to bacteria bloom. The bacteria bloom is indicative that the cycling process is well underway.

Do you have a filter running?

Unless you use very soft water, it is often unnecessary to increase water hardness.

 

[Stumpy]

I don't have a substrate in for the moment, but I am certainly anticipating a bit of cloudiness when I do find some black sand
Fingers crossed it is just a bloom, it'd be good news if the tank is moving ahead nicely~
My current filter is a bit strong, when completely unhampered it's effectively a nice water slide for unwary guppies too close to the surface. So I currently have a spray bar in place, but I'm thinking of extending it with some more tubing to just dissipate the flow a little more evenly.

Thanks for the response, worrisome worries are now at ease

 

[Jennewt]

In addition to fogginess due to bacterial blooms or substrate powder, I think that some sources of tap water will spontaneously cloud up, even before the tank has started to cycle. I have certainly had this happen. My best guess is that it's some kind of inorganic chemical precipitate from something in the tap water - or maybe a bacterial bloom from some nutrients in tap water. My advice is that you just have to "ride it out". It will get better with time, and once it's gone you won't have problems with partial water changes.

I have had newts in a tank that had this cloudiness issue, and nothing bad happened. I'd be inclined to get the axie out of the pet shop, unless you really have confidence in how they are keeping it.