I am in the 4th week of cycling my tank. My NH was up around 7.5 now it is just around .25 and NO2 and NO3 are sky high > 1.5 so I asume that me cycle is almost done. My question is; I am going away on June 7th for a week so I was going to hold off on getting fish. Will that mess anything up in my tank and or cycle? Should I get a shrimp or two and maybe some snails to clean up the Algae? Should I do water change as if there were fish in the tank? BTW it is a 55 gal with LR. Thanks for any info.