My aquarium has been set up for a week. I have Val. americana in the tank and a 2 year old seeded sponge filter. I will be getting Alternanthera reineckii and Bucephalandra Brownie Blue this week to add to the aquarium. Tested every day for the last week and get 0 Ammonia, 0 Nitrite, and 20 Nitrate. Diatoms growth is on the sand along with the wood piece. Is it ready for my Rabbit Snail to be moved in once I get my new plants?