I had a question for you guys. After going through all of this, the one thing that tells me why my system crashed is due to low bio filtration to handle the water changes. Maybe it was the Prime refills, maybe not. Ill never know for sure, since my 75 gallon have been treated with the same thing and never had a problem with it. The one thing that I have different on my 75 is my first HOB filter I purchased of walmart 3 years ago when I first got into the hobby. A tetra whisperer rated for 50 gallon lol. I think I cleaned that filter maybe 3-4 times in 3 years? got so much slime all over it, but I ignore it since I have the AC110's doing the job. Maybe that little tetra is the real BB winner here. Now on my 220 I run the Eheim 2262 Canister with amazing bio filtration, expensive too . Matrix / biohome/ Eheim Substrate pro. That's all there is inside that canister.
I also run 2 x SunSun's 402 that frankly, do little to nothing to help my filtration, being honest. I opened them a month ago after not opening them for 2 months and all the media was literally clean, as if they were brand new, which tells me they're not doing their job too well.
I also run 2 x Ac110's , but we all know that's nothing for a 220 , I just use them for Filter Floss and Purigen or Chemi Pure Elite, I switch back and forth.
So it comes down that's the real filtration on my 220, its the Eheim 2262, I know that's not enough to filter a tank this size, with fish this size. I know I should buy another eheim 2262 and call it the day and be safe for good. But right now is not a good time to drop $ 450 - 500 on another, specially after this disaster of losing fish and buying stuff to fish the issue.
So here it goes, should I add substrate to my tank and quit the bare bottom look? At least until I can get some more filtration? I have a local rock/plants spot that has amazing small river rocks, all natural and very cheap. Should I add them to the tank for some BB, which is going to help with filtration? or should I stay the same. Ill only be adding enough gravel for BB colonies to be there, not too much where I have to constantly be gravel vacuuming. Let me know guys, Thank you