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Would appreciate some advice on a new planted 75 gallon tank I'm establishing. The substrate is about 1 1/2 " organic soil capped with fine gravel (#3 grade) ranging in depth from 2 to 3 1/2 ". Based on some recent reading, I'm concerned about potential anaerobic conditions setting up and killing future inhabitants. Are my concerns overblown? Are MTS snails a good option to promote substrate aeration or would I be introducing a future nightmare? BTW, there are no fish in the tank yet since the formal cycling process will begin next week.
 

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I think that the concerns are overblown, but this soil business is a new trend so I don't know what that means for the fabled toxic gas bubbles.

MTS are a valuable addition to every tank. They will only become a problem if you feed excessively.
 

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Might consider that plant's are able to transport oxygen to their root's ,so lot's of plant's ,,,would negate any concern's over anaerobic (lack of oxygen) condition's for ME.
Will assume with the substrate mentioned,,that plant's are going in?
Many pond's, lakes,I have fished, have sand,mud,bottom's that nobody pokes,stir's,and yet the fishes thrive here year after year.
Me think's anything over five inches might encourage anerobic condition's but would be of small concern in heavily planted tank. IMHO
 
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