The tank ran for around 2 years when it crashed.
I changed out 50% of the water at first and then left it for around 1.5 months.
Didn't touch anything after that except for a slight aquascape and chiselling coral bases off rocks.
I don't do water changes and carbon dose with vodka and the nutrients were left to drop in the fallow period and then I added the frags.
GHA eventually died off (after 2 months or so) after the bound PO4 in the rock became exhausted.
Next up came dino's, Ostreopsis flavour and those were beaten back with the use of Vibrant.
After that I had the odd patch of cyano but that has cleared up and the tank basically runs on autopilot now.
I have to add that I added a filter using crushed coral that runs on a similar principle to the Dutch 'Dymico' system, minus the calcium reactor part of their filter. In this filter that recirculates a part of the tank return water, there is ~60 kg of crushed coral (5-10 mm). Basically water comes in over the top in the middle compartment, gets recirculated around the filter by a small pump in compartment B and then exits through the bottom of compartment C and overflows back into the sump. I filter ~300 L/hour of my tank water this way and I had to stop carbon dosing, turned off my skimmer and I still have to add NO3 in from time to time, that's how efficient it is working for me.
Here is an image of it:
![]()
I also made my own calcium reactor that takes care of the big 3 for dosing![]()
Thank you for sharing your unique journey from crash to vitality. Your story is very inspiring
. I noticed that you mentioned the use of vibrant which is something I recently heard about for controlling nuisance algae. Did you use it while you had sps and is it beneficial?
;Joyful

