Raising ph to 7.2

michaelsf90

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The water round my way is extremely soft water! The ph from the tap is 6.8 but over time it lowers. It lowered that much it was below 6. So I added a small filter, its a 125L tank and the filter is 300 litres an hour filled with crushed coral. I can get the ph to 7. Well its 7 to 6.8. Its hard to tell on the api test as the colours are very similar. Anyway I have snails and ideally want it to be raised to 7.2. It doesn't seem to want to go higher than 7. Has anyone any ideas for a long term solution or just leave it and keep it at 7 with the crushed coral?
 

Mike1995

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You could use seachem alkaline. it raises ph. You have to carefully read the directions though.
 

A201

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Instead of crushed coral, try adding limestone rocks to the hardscape. My guess is, Limestone, coupled with a weekly 50% WC will probably keep the PH in the mid 7's. It should harden your water & buffer against a PH crash.
 

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