Media in canister was standard black foam,eheim bio strata,Purigen and Ceramic rings with a polishing pad.
Media in HOB filter was just the bio wheels and two polishing pads.
Link:
https://junglebobaquatics.com/collectio ... -7830-nbsp
There was nothing in the tank that wasn't aquarium safe.
Tank is drained now,last tests were 0 ammonia,0 nitrite,10 nitrate,8.8 ph, 10 gh,14 kh temp was 79
Tap water is 6.9 ph and very soft. I used the buffer recipe from this site to bring it up to required parameters.
I treated with Paraguard and Metroplex in case it was disease,no improvement
Only fish to survive were 1 adult gobie and 2 mid size hecqui and they are now in a 25 gallon tank that I cobbled together.
I've pulled the tank apart,cleaned the glass,threw away 110 pounds of Carib Sea Cichlid sand and am ready to start again.With Haps this time.
All tolled I lost almost $1000 in livestock,It's not the money that bugs me,it's the loss of life.
I just need to know if I should buy all new filter media and start over,or clean it and start over.