Need a little help

[harndog]

Not exactly a new hobbyist but having to deal with some things I have not had to before. I make my own ro/di water and salt mix with IO I have been seen my ph has been getting lower and lower in my reef and also my folwr. the Reef has been up over a year and has very light bioload so everhting is 0 and ph has dropped to 7.8 or so in the am and about 8.0 by end of day. I need to get it back up. I have never tested for alk but bought a test tonight as well as kent pro buffer dkh. The 175 has been around the same maybe a little lower in the am. I have some new fish so feed a lot to keep the healthy and plan to start cutting back soon. After I test alk if it is low as well I plan to use the buffer if not then most say to do water changes here is the kicker my make up water is also comming in at 7.8 ph what gives how is that suppose to raise the ph in the tank?? Any help???

 

[wax32]

First, have you tried a different test kit?
Second, a pH of 7.8 isn't critically low, but you would think fresh salt mix would be higher... so HMMMMMM. I dunno!

Double check to make sure your pH test is right.

 

[harndog]

doing that in the am bought another kit tonight. Thanks for response. It is wierd because the reef is full has 3 inch sand bed oolite and sugar arg and the 175 has 3 inch arg bed of oolite and it is only 5 months old

the reef is about 16 months now though. all of the corals including sps are doing great 10 p shrimp several e crabs and a hand full of snails are all doing great as well as the GSM dom damsel yt damsel and spotted mandrian. maybe is test kit???? bought a red sea was using aq pharm.