Posted: Sun Jun 21, 2009 4:24 pm
I used one a couple of weeks ago.
It was supposed to last 40 to 60 days.
It lasted seven days. My turtles ate it.
They haven't had any problems from it, but, it didn't do anything except keep the tank from smelling like turtle pee.
Since I have a small tank, I just clean everything once a week. I don't clean that harshly, either. I just rinse the tank out and put in fresh water. Having a spotless, super duper ,so clean you can eat off of tank, is not good for them either.
Edit:
http://www.petdiscounters.com/c19/c221/ ... p7345.html I found this on a particular online store I like a lot. Anyways, I haven't personally used it, so I can't guarantee how well it works. However, it seems to me like it is more geared towards what you are looking for.
Spike - Egyptian mau mix, 8 years old
Phryne - Japanese bobtail, 9 months old
Hurricane - RES, 8 yo, 6 1/2 in. long
Typhoon - RES/Map hybrid, 8 yo, 7 in. long
Sadie - RES, 20 yo, 10 in. long
Sophie - Colombian red tail boa, 5 yo, 5 ft. long