Hi All... Help With Water Test Results Please

That's good news 

Whitespot takes as long as it takes. Like any disease, it can vary from case to case. Don't stop treatment just because the spots go away because the parasite will still be in the tank.

It depends on the filter, and what form the carbon is in - granules or impregnated on a sponge.
If it's on a sponge, it can be replaced by a plain sponge. Any make, cut down to fit.
If it is a bag/box of granular carbon, replace with either a plain sponge or if the space is big enough, with ceramic noodles or balls.

The ceramic media come in various guises, the most common is like white hula hoops - the snack that is, not the big plastic rings. Another option would be Eheim substrat pro, which is white balls of sintered glass rather than ceramic, but that too is a bio-medium. It is what is inside the filter in my 180 litre tank. Whichever you go for, put it in a mesh bag - the one the carbon is in now would be ideal.
Sponges and ceramic media are usually placed beneath the polishing pads. The pads usually go last in the direction of water flow to remove the really tiny bits that are so small they go through the sponges etc. The only exception to that is with Juwel internal filters where the pads go first.

Fish will soon get to know the signs of being fed. All I have to do is get the box holding the food tubs off the shelf above his tank and my betta is there waiting and begging for food. The fish in the main tank know that when I lift the lid flap, it means food and they congregate at the surface in the corner.

It is quite easy to overfeed fish. Feed as much as they can eat in 2 minutes. If there is any food left after that time, feed less next time.

Clown loaches are very prone to whitespot, unfortunately. They come down with it at the least sign of stress, and with yours going through a fish-in cycle, it is not very surprising. Hopefully once the cycle has finished and the water parameters stabilise, they settle down and be fine. Though if I remember correctly, you will need a bigger tank for them before long.......

Everything is all good in my tank now, getting 0 readings on ammonia and nitrite I've ditched the strip bubbler for a normal one too.

Thanks for all the help I hope my tank stays this way for a while!