These wipes are really great for algae growth inside tanks. Does a great job and keeps growth off for weeks. But as for hard water deposits not so good. Really have to scrub hard to get any effect. I like that it is safe to use under water.

Pros: Really great on algae growth

Cons: 50% job on hard water deposits

The review sounds good. I would be willing to buy this and give it a try. Having a clean tank is important.

Pros: would like to see how well it works.

Cons: none

These dried up within days even sealed in a plastic bag.

Pros: Work well

Cons: Dry up quickly