I've been running a wet dry filter along with a canister filter because my canister filter was not turning over enough. The wet dry filter pump died on me when I did a water change today. I didn't think about it, but a couple of hours later and all my fish were dead. I tested ammonia and it did spike, but not above .5mg/l. I'm assuming the O2 is what killed them, even though they did just fine with the canister filter alone previously?
My ottos and amano shrimp did make it. I've raised the spray bar so its splashing into the tank. In general is there any way to improve oxygen with a canister filter?
My ottos and amano shrimp did make it. I've raised the spray bar so its splashing into the tank. In general is there any way to improve oxygen with a canister filter?