Do you all use these products? I know what they say they are used for but how would I even know if I need them. I check my parameters and check each fish/coral everyday and I have no problems at all. I commend Instant Ocean sea salt for part of that and my weekly routine the other, but I know I will run into my problems and want to know if I should pick up these products when I go to the That Fish Place sale on Saturday. I am trying to come up with my "Need to buy list". Any other products that you use all the time that you recommend that the 4 month old reefer may not be using yet.