unhappy zoos, cyano

[yanek]

One fine day, my pinpoint ph meter went out. Low battery; oh well, my ph had been steady at 8.2 for quite a while so I wasn't worried. Everything in the tank was happy as can be. Then, another fine day my skimmer pump went out. Took me a week and a half to get it replaced. By that time, my zoos were _very_ unhappy (mostly closed), my mushrooms also were shriveled. After I got my skimmer back online, I ran it for a couple of days and observed minor improvement. I had hoped to see more drastic improvement. So I started testing. Nothing bad, except it looks like my PH dropped to 7.9 - 8.0. I've been dosing kalk and doing water changes every 1-3 days since then. Everything's fine in the tank now (still ph 7.9 though!) except for the zoos (still a little closed) ... and there's cyano. No phosphates showing up. No nitrates.

Thoughts? What's the best way to restabilize my pH?

 

[melosu58]

10 to 20 percent water changes will do the Job every time. Every time you have a severe ph drop like that do a water change. Then to keep it there get some Kent`s superbuffer. But do the water change first. To me this is the only way to stabilize the ph after a drop like that. Good luck