Stunning 100-Gallon Reef Tank by John Susbilla | ReefKeeping
Tank Specifications
Volume: 100 Gallons / 378 Liters
Dimensions (L × W × H):
48.0" ×
24.0" ×
20.0"
121.9cm ×
61.0cm ×
50.8cm
Equipment List
- Salt: Tropic Marin
Frequently Asked Questions
What kind of lighting system do you use for your reef tank?
I use a combination of lighting that includes 2 x 400 watt Iwasaki metal halide bulbs on PFO ballasts for the main lighting, with a photoperiod of 10 hours. Additionally, I have 2 x 110 watt URI actinic VHO bulbs run on an Icecap 660 ballast, which are on for 12 hours. The sump is lit by a 175 watt 4.5KK metal halide bulb also on a PFO ballast, working on a reverse daylight schedule for 12 hours.
How high are the bulbs positioned from the water surface?
The bulbs are positioned approximately 7-8 inches above the water surface, which helps to provide adequate lighting for the corals while minimizing heat transfer to the tank water.
How do you achieve successful growth of SPS corals?
To promote successful growth of SPS corals, I maintain high concentrations of essential elements such as calcium and alkalinity using a calcium reactor. Furthermore, I ensure stable water parameters, perform monthly 10% water changes, and monitor water chemistry regularly.
What can I do if my corals are suffering from recession?
If your corals are experiencing recession, it's essential to identify the possible causes, such as poor water quality or sudden changes in conditions. You can try relocating the coral to a more stable part of the tank with suitable light and flow, and make sure to monitor water parameters to ensure they're within ideal ranges.
What is your regular maintenance routine for the tank?
My maintenance routine includes a monthly check-up which involves a 10% water change, thorough equipment checks, and adjustments for water chemistry. On a weekly basis, I clean the skimmer and the glass of the tank to remove algae and other deposits.
How often should I change the activated carbon in my tank?
I use activated carbon occasionally; it’s typically recommended to replace it every 2-4 weeks depending on your tank's bioload and water quality. Regular changes can help in minimizing toxins and impurities in the water.
What type of filtration system are you using in your reef tank?
My filtration system consists of a 30-gallon refugium/sump with caulerpa algae, an AquaC Urchin in-sump protein skimmer, 100 lbs. of Marshall Island live rock combined with 20 lbs. of Monano live rock, and a 2-3” aragonite DSB.
How do you enhance water circulation in your reef tank?
I enhance circulation using a Sen 900 return pump, a continuously running Maxijet powerhead, and a Super Wavestrip wavemaker to control 3 additional Maxijet powerheads, which helps create varying currents and flow patterns throughout the tank.
How do you manage temperature control in your tank?
For temperature control, I use a Medusa dual-stage temperature controller alongside a 1/4 Aqualogic drop-in chiller and a 300 watt Visitherm heater. To facilitate cooling during hot days, I also employ five axial fans in the canopy and a clip-on fan over the sump.
What should I do if my tank temperature rises unexpectedly?
If your tank temperature rises unexpectedly, you should immediately turn on any cooling systems such as fans or chillers. Additionally, ensure that your heater is functioning properly and consider partial water changes with cooler water to gradually reduce the temperature.