So i did a nano ten about 4 mnths ago, tore it down and built a 40 gal. I miss my nano!!
So, what i did, was this !
I took my sisters old 0.68gal betta bowl, yea its small.
And used a bit of dry old live sand from my ten i tore down, and a pinch of ls from my 40. To my luck, a tetra 10 hob...