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Right now I'm using Fluorite as my substrate in my 5gal Betta tank, but I feel like it's too coarse, big and sharp for my MM to carpet very well.

Do you think I should cap my Fluorite with something more fine? What do you think would be best?
I was thinking a small, 3L bag of Aquasoil, but I don't want to deal with the initial Ammonia spike.

Any advice or suggestions would be greatly appreciated!
 

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Re: Best substrate for Marsilea Minuta?

Hi FuzzyMuffin,

Welcome to APC! I like any of the Montmorillonite clay clay substrates. Fluorite should work fine as well. There is no need to 'cap' it. Along with doing the water column hiding a fertilzer tab (I like Seachem Flourish Tabs) in the substrate seems to help get it established.

My water is extremely soft so I have to add a little carbonate (baking soda), calcium, and magnesium to my water.

Marsilea minuta in 30 gallon
 

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Re: Best substrate for Marsilea Minuta?

Flourite black sand. Looks good enough until things grow in, helps the plants a bit nutrient-wise and has more heaviness than soilmaster or anything like that.
 
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