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I have been researching and read all the negative and positives to using kitty litter. I think, and see in pictures, the positives outweigh the negatives.

I found a local brand that is 100% sterilized georgia clay for $4.99 for 25 lbs.

I am going to use it about 1" deep on the bottom, but, I want to have a hill at one end of the tank about 6" tall.

Should I build the litter up deeper in that area or not?

I have a bunch of natural small aquarium gravel in the tank now I would like to reuse to cover the litter but also thought about pool sand but read it won't build a hill very well. I did a test pile of the gravel for the last 4 weeks and it hasn't moved at all even with no large stones like I plan on adding to complete the hardscape.

I want to get to the rebuild of my tank this week so I would appreciate your input.

Thanks,
Steven
 

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Hi Steven,

I think 1" may not be enough, it depends on what you want to grow. For plants with intricate root systems you will probably need more like 2 - 3" of substrate depth.

What kind of tank do you have? Low tech, High tech?
 
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