Victor M. Martinez wrote:

Ammonia: 0
Nitrite: 0
Nitrate: 20-30

Seems the cycle is complete.

OK Summarizing...

20 gallon tank, "a few plants"
Mardel Labs test kits
Temp?
pH / kh / gh ?
Phosphate level?
DO2 level?

Day NH3 NO2 NO3
-1: - Set up tank 5 inches of fish added
0: - Add BIO-Spira
1 - Add 6 inches of fish, MTSs and ghost shrimp
2 -
3 0 - -
4 0 - -
6 0 1 20
8 0 2-3 20
9 0 1-2 20-30
10 0 0 20-30

(- denotes no recorded test)

Do I have it correct(ly)?
What else are you using: Dechlor? Conditioner? pH adjustment?

-Donald
--
"When you've lost your ability to laugh, you've lost your ability to
think straight." -To Inherit the Wind