My oldest reef, 7 years since it was first set up. Recovering from being "nuked" due to an infestation of cotton candy algae I could not get under control. I had good success with a sea hare, unfortunately it fell prey to a fulgida worms, which still infest my tanks. So after exhausting every other method, I chose the nuclear option, and imposed a 3-month long total blackout. Wrapped the tank up completely with a black weed barrier, to ensure total light exclusion, but still allow for oxygen exchange, and thankfully it worked.
With all that said, I suppose the reader might wonder why the emphasis on "aggressive" in the title? Simple, this tank is mainly home to more aggressive species. I have three varieties of cactus coral (Pavona), and a Hydnophora colony. There is also a Rhodactis shroom in there, a few monti frags from my 15-g reef, and much of the tank is covered in clove polyps! Luckily they are of the benign variety, meaning they do not smother other corals, but do take up real-estate, and make it harder for them to spread out.
Now to the good stuff!
Equipment
- Tunze Comline DOC Skimmer 9004
- 2x Tunze Nanostream 6055
- Tunze 7097 Multicontroller
- Aquael Ultra-Heater 100w
- Maxspect RSX 150w
Livestock
- 9x Assorted Hermit crabs
- 4x Trochus snails
I operate the pumps in a tidal-type configuration, alternating the direction of the flow in the tanks, every 6 hours. And I have set randomized pulse durations. I did have to make some adjustments, as these are powerful pumps and I normally use the smallest grain size on my sand. So I scooped back all the 0.1-0.5mm sand to the middle, and added a couple of kilograms of 0.5-1.7mm sand at each end, which stays in place nicely where the currents crash into the wall. I also just started feeding 4ml daily with Red Sea Reef Energy Plus, on account of not having any fish in here for the time being.
A few closeups.
With all that said, I suppose the reader might wonder why the emphasis on "aggressive" in the title? Simple, this tank is mainly home to more aggressive species. I have three varieties of cactus coral (Pavona), and a Hydnophora colony. There is also a Rhodactis shroom in there, a few monti frags from my 15-g reef, and much of the tank is covered in clove polyps! Luckily they are of the benign variety, meaning they do not smother other corals, but do take up real-estate, and make it harder for them to spread out.
Now to the good stuff!
Equipment
- Tunze Comline DOC Skimmer 9004
- 2x Tunze Nanostream 6055
- Tunze 7097 Multicontroller
- Aquael Ultra-Heater 100w
- Maxspect RSX 150w
Livestock
- 9x Assorted Hermit crabs
- 4x Trochus snails
I operate the pumps in a tidal-type configuration, alternating the direction of the flow in the tanks, every 6 hours. And I have set randomized pulse durations. I did have to make some adjustments, as these are powerful pumps and I normally use the smallest grain size on my sand. So I scooped back all the 0.1-0.5mm sand to the middle, and added a couple of kilograms of 0.5-1.7mm sand at each end, which stays in place nicely where the currents crash into the wall. I also just started feeding 4ml daily with Red Sea Reef Energy Plus, on account of not having any fish in here for the time being.
A few closeups.