The Puffer Forum

I think he has pooped the prawn out, you can normally see a bulge in his stomach. I'm not sure why the pH crashed, was changing water weekly 20% siphoning gravel and cleaning filters once a month (in old tank water). When the crash happened I done a 50% water change (tap pH is 7) took out all plants...

Ive had my mbu puffer about 2mths now, he is in a 6foot, 100gal tank, tank has been running about 1yr now, parameters are pH 7 ammonia 0 nitrite 0 nitrate 12.5. I had a few problems with my tank a few weeks ago and had a pH crash, pH was 5, watechanges didn't help and used pH up, which helped a litt...