Hi all i've been caught between using this and Akadama. In the end i've gone with the cat litter, But i'm going to try something different which as been done with the Akadama, but before i do i wanted to know if it was ok to do it with cat litter. What i want to do is the following:
1th, Sphagnum Moss Peat
2nd, Miracle Grow tabs ( broken ones or whole ones not sure yet )
3rd, cat litter, Mulm and actived carbon from my filter (The reason why I want to use it is because it should have a nice layer of bacteria growing on it)
4th, cat litter
5th, The play sand which is in the tank now.
The thing is i'm not sure on how deep the sand capping needs to be i've read from a inch to 3 inch :?:

Also can you soak the cat littler for a few days or is it ok to wash it and put it in then the fish after you finished and filled the tank again ? Also is it safe for frogs as i have two of them :?: Tank specs Are a 60l tank , with low light 0.75 wpg (1 15w T8 Arcadia Orignal Tropical lamp,+T8 Arcadia reflector ), I use easy carbo 2ml a day and profito 1ml aday (wasnt sure if i could up the levels of profito usin the cat litter i'v been given a new bottle off TPN+ liquid (xmas gift).I do a 20% water change every week.
Any infoe be great ty
Jon