Has any one used?

Sure it's safe, and unnecessary. I guess people love spending money on consumables.,but they don't need to. Simple untreated (re-usable) sponge, soft brushes, or cleaners like that magnetic one cleans the glass without a problem. For the outside simple window cleaner and a rag does a perfect job (windex is 100% safe, just spray the rag first and not the tank directly).

Likewise, cycled tanks don't need 'cycle', and that stuff doesn't even actually work. It's amazing - for 20 years I've been keeping problem-free tanks and yet the only thing I ever add to the water is conditioner. It is amazing all the things stores convince people they need though.

I'd personally never used wipes on the inside of my aquarium (outside - yes), I'd much rather use a magnetic padded cleaning device. This way I'm sure the only thing in the tank is a) water, b) whatever detrius I haven't yet cleaned out, c) the fish and d) any possible medications I've had to add.

However, I'm sure they've tested their product before marketing it to what is seemingly a rapidly growing industry. If they didn't test... that's just stupid of them.

Yes, gaphy has a point there. It's not worth the money. Personally, I just get a paper towel and spray the paper towel with Windex and tadah! Nice clean clear glass!

I would not use that. Instead I would get Cycle it help keep the water health and help pretend fish loss.

I noticed when I use in my 25 gallon tank - 2 caps full...

that my fish became more active.

They were already active but the one of my orange gouramies would stay at the top level where filter water is. However I had some other mean fish of the same family.