I am also a Aquaponics newbie. I read Sylvia's book and dove in last October. Everything was great until a couple weeks ago when I expanded my system. I added a 3'x5' DWT to my system which is a 55 gal plastic Barrel for the tank, one cut in half for 2 media beds and another half barrel for a sump. I had been testing my water weekly and not had to make any adjustments for weeks and totally forgot to check the PH of the water I was adding to the system. I noticed the fish acting funny but didn't get around to investigating deep enough to find the PH over 8 until a couple days later. It took me a week to get it back to 7 as the two bottles of the cheep PH down I was using from the pet store didn't do the tick and had to order some online. I lost several fish initially.
Now a week and a half after stabilization, I am still losing a fish here and there. They are not eating and are still very lethargic and some are floating funny. I have checked all the other basics like ammonia and Nitrites and all are good. Have I permanently damaged them all or will they recover? Any tips?
Hi David. You want to gradually change your PH. I don't believe a PH of 8 would've killed them. You didn't mention the temp?