Ode to
@brandon429 ....super sand rinse project:
I’ve got a client with a nice 180 reef that, due to some outside circumstances, started to slide a little bit. Then COVID hit, and I wasn’t able to get to the tank for almost 4 months. When I got back to it, it was a disaster. The corals and fish were healthy, but it had turned into a coral swamp rather than a coral reef. After a couple of services, it became clear that a more intense remediation was needed in order to tip the scales back in our favor.
Step 1: remove as much water as possible before disturbing anything. I was able to very quickly get more than 2/3 out while keeping all the solids in the tank (I usually shoot for 3/4, but whatever).
Step 2: I carefully remove all rocks w/coral attached, and brush off any unwanted algae as well as full as much detritus as possible out of the coral and rock. Those are placed in bins with ‘clean’ water from tank.
Step 3: remove all other rock and remove algae and detritus as was done in Step 2
Step 4: remove all other animals, and place in the bins
Step 5: scrub down back and side surfaces to get as much junk as possible off the surface and into the water.
Step 6: rigorously stir up the sand bed. This allows us to free sunken detritus/nutrients, as well as free more toxic substances like hydrogen sulfide. All of this sand is stirred over and over, and then ultimately pushed into one corner of the tank and piled up. This helps preserve micro-fauna and bacteria.
Step 7: gently push as much detritus as possible to opposite side of tank and allow everything to settle out.
Step 8: remove the rest of the water/detritus/waste from the tank. Once that is removed, flatten the sand bed out and begin scraping the rock w/o coral. Then add the water stored in the bins plus new water to replace removed water, fish, corals, inverts, etc