I have a new 32 gal bio cube tank I only have two clownfish in it . It's a little over 6 weeks old . The first two weeks were fine ,but now my parameters are off nitrites 0.50 nitrates 50 ammonia about 0.25 I do water changes I put more nitrifing bacteria in tank ,I use RODI water, also I do have algae on the rocks . I still cant get the numbers right . Doe anyone have a suggestion?