Received my API test kit in the post and my initial readings are PH 6.4 Ammonia 0 Nitrite 0 Nitrate 40 According to the test kit instructions my PH should ideally be about 7.5 for a communal tank...I'm currently looking at getting API Proper P.H 7.5 adjuster on ebay to sort this. Are there any other methods in the meantime to get my PH closer to the 7.5 rating until my API Proper arrives? Daily partial water changes etc? My nitrate is also a bit too high according to other posters on here it should be at 20 or under, I'm checking ebay to get some Aqua Nitra-Zorb or detox as its now known. There seems to be two options to get size 5 or 6, but none of the postings say if the size relates to size of tank or if its just a packaging issue, i.e. you get more for size 6...anyone able to clarify what the difference is with sizes? Finally the API test kit advises doing weekly tests but on here again I have seen people say they do dailly tests, is this just a personal prefference or would fishlore posters advise doing daily tests?