This product is designed to help control common diseases ( including salmonella) of pet aquatic turtles and other reptiles.
I have been using Reptoguard for almost 2 decades. My 22 yr old red-eared slider has benefited greatly from having this added to his water every 40 days or so.
It does not replace the importance of handwashing after handling ,good hygiene in the tank ,and basic necessities such as a good filter, clean water and disposal of waste products.
It does, however ,help condition the skin and shell and discourages the growth of bacteria in the water and on the turtle itself.
It is easy to use;simply remove from the packet and place in the turtle's water habitat.You use 1 block per 20 gallons of water. It will slowly dissolve into the water and will not be removed when the water cycles through the filter.
I sometimes have difficulty finding this product on the shelves. I solve that problem by purchasing multiple reptoguards when available.
The price can run from about $2.39 or so upwards to over $3 per item. In the long run,though,it's worth it.
I have used this product with great results and I highly reccomend it. Especially in view of the pet turtle /salmonella scare that recently happened in the west.

Pros: Easy to use,beneficial to turtle's health

Cons: can be difficult to find,price

I like these although you get 1 piece per 20 gallon. They are worth it, helps keep the turtle and the tank clean.

Pros: bacterial free

Cons: tank size varies

I used to use these years ago when I first got my turtle. I'm pretty certain that it's pointless. Anything that claims to kill Salmonella, but is safe for your pet, sounds fishy.

Pros: says it controls disease

Cons: probably pointless

I do not know if this product works, but it is very cheap and lasts a long time so I use it anyway. If it does work, I think it is worth it. I still recommend washing your hands after you handle a turtle, though, in case it does not work. It has never harmed my turtle in any way, so I think it is really up to the pet owner on whether or not you want to use it.

Pros: Should kill Samonella

Cons: none

These are common place in my turtle tank and seem to do their job excellently.

Pros: excellent

Cons: none