Hi guys,
Thought I would give a quick update for anyone that might go through something similar.
After the second dose of Prazi I noticed an improvement. The paranoia was still strong so after a few weeks I dosed the tank with Internal Parasite Clear. This was going well, however, my Clown Loaches had an adverse reaction after the second dose so I stopped it right there. Even after a quite few large water changes the Clowns were still not eating. I took out all my Texas holey rock and unfortunately missed one clown who was resting in the smallest of caves, killing it in the process. The clowns were removed to another tank. Over the remaining months, I have given my fish a break from all the meds and kept the water pristine. Everything is going well. Even the Clowns are back in and doing very well. The fish are all very happy and I will eventually be purchasing some more, housing them in a quarantine tank after all my ordeals. I have not seen the return of any Hydra and will be boiling my Texas holey rock before recreating the aquascape.
Thanks to everyone for their knowledge and suggestions.
- bigjohnnofish and Delapool like this