We have a 300 gallon system that we set up 7 weeks ago..we have about 200 pounds of dry rock that we used in the sump...we added raw shrimp and then a bottle of bacteria...we had a really high ammonia spike the first 2 weeks or so and them after that our nitrite level is through the roof..that was 4-5 weeks ago and it hasn't gone down since...not sure what else we can do..I didn't think it would take this long..any suggestions?


