Terry, Dan's post reflects my own thoughts, especially his observation that you appear to be making too much work for yourself, albeit with the best of intentions. I’ve been back over your original post and it seems to me that it shouldn’t be too difficult for you to get things onto a more easily manageable and less time-consuming footing.

In my opinion your filter is inappropriate for a 5 gallon tank containing a 2-inch frog. It’s claimed to have a turnover rate of 80 gallons an hour, which means that your tank’s water’s passing through it 16 times every hour (384 times a day), which is excessive and unnecessary for a 2-inch frog. Aside from the fact that it’s not presently serving any useful purpose if the water's getting green and smelly in a few days, I imagine that it must also be creating considerable water turbulence in the tank. This wouldn’t be a problem if it contained fish but Xenopus frogs occur naturally in pools where the water's still or very slow-moving. It follows therefore, that if a frog’s kept in a tank with a lot of water movement at all levels, it’s having to survive in conditions for which it’s not naturally adapted.

I think that a box or foam filter powered by a low-output air pump would be a more appropriate arrangement for such a small tank and frog. There are a lot of YouTube videos illustrating these things and explaining how they work. If you do that and keep the tank shaded I think you’ll have a lot less work to do.

Finally, one of the reasons that I kept these frogs for 26 years was that they were so easy and undemanding to maintain successfully. You’ll probably find it encouraging to read the posts in this old thread that was started almost 9 years ago: http://www.frogforum.net/showthread....rog-age-record

Good luck.