I would do a few more 25-30% water changes just to be safe.
As far as your nitrate and alkalinity tests, they can be found >>online
<< if your LFS
does not carry them. Your main concern right now is finding out the nitrate level moreso. Have you asked the LFS
if they carry one?
Your carbonate hardness kit (KH
) could actually be decent enough depending on brand and accuracey. 14-15 DKH
would suggest you are using IO salts based on your Ca
level posted earlier. If that's the case you don't have too much to worry about (unless a reef tank) but I would add a tad of CaCl
to your water to bring things back into balance. If the pH is still supressed, you should also look into the possibility of not having enough water flow/surface aggitation or something covering the tank is preventing proper gas exchange and trapping CO2
. If there's a glass lid, you should look into replacing it with something like eggcrate material.