hello everybody, i am new to this site and this is my first post. i recently did a 10 gallon nano reef on my own and realized that it was too much work and my water parameters are going crazy. i just bought a 100 gallon tank and i am going to use my 10 as a sump. any ideas for a good substrate.. i am using a artificial live rock insert that is currently being made. any ideas would greatly be appreciated on stocking and everything that will make this easy. thanks