Originally Posted by Chris07860
23% of water changed I toped it up and am going to do this every other day until the Nitrates and down drastically then I will do weekly 50% water changes. I just hope that won't kill off good bacteria
Water changes shouldn't kill off good bacteria. The good bacteria lives on submerged items, such as gravel and filter material.
You have gotten some very good advice here from other members.
My personal opinion is to probably hold off on the gravel change until you get things taken care of.
The aquarium salt... I would for sure stop using it. If you had Cichlids that liked it, or are using it to treat a medical issue that would be a slightly different story, but for the fish you have, aquarium salt will for sure do more damage.
The red fish is a harlequin rasbora, the eel looks like a striped peacock eel. The little striped silver look fish appear to be zebra danios (which also prefer a lower temps in the mid-high 70s).
To help with stress, the rasbora especially, would appreciate a floating plant (real or fake).
When it comes to de-chlorinator, I have never really counted drops. It isnt something that will hurt the fish, so over using when doing a water change is fine. I always just throw in a good squirt and go. (Currently do not have my fish tanks running...filters died on me, so I found the fish new homes, broke the tanks down, and am now in the process of moving.)