I have a 63 gal. tank. On friday i changed all the substrate in the tank from 5-10mm chrushed sharp stones to 0,7-1,0mm natural grain sand.
The major reason for this change was to make my gang of 8 clown loaches even happier

Now they can dig as much as they like in the sand and have fun..
Also i made the layer quite thick allowing me to have a network of PVC pipes in the sand for the loaches to hide in..
Due to this thick layer of sand i want to add sand snails. I have ordered 100 sand snails. I will add 70 of them to the 63 gallon at night when the loaches are sleeping..
Any chances they will survive ? or will the loaches catch them faster than the sand snails multiply ?
30 snails goes in my small catfish tank with 5*panaque maccus.
I really dont want gas "pockets" in the sand..

edit: Adding another picture.. note the dot on the tail is on the glass.. not on the fish

