Tank Of The Month – TOTM December 2019

190 Gallon SPS Tank from Janne Koskinen, run by the GHL System

Tank owner: Janne Koskinen
Location: Tampere, Finland
Display size: 150cm x 80cm x 60cm /Approx. 59in x 31in x 24in
Display volume: 720 liter/190 gallon

My name is Janne Koskinen and I’m from Tampere Finland. I got my first tank a 60 liter (15 gallon) freshwater tank 42 years ago. The hobby was a lot different back then. It took many years to learn to keep livestock and we’d go through lots of fish before finding success. It wasn’t until about ten years ago that my interest went to the salt water side. I’d read many horror stories of reef keeping which made me apprehensive. About three years ago, I decided to get rid of the last of my freshwater tanks and take the leap into reef keeping.  In looking back, I believe my many years of success in freshwater tank keeping helped me be more successful in reef keeping.  It’s been an incredible journey with lots of ups and a couple downs but I truly have no regrets.

My tank is SPS dominant with some LPS. This tank has been up and running for about two years. The sump is about 350 liters (90 gallons) and measures 120cm x 60cm x 50cm (47in x 24in x 20in) and has a built in 50 liter (13 gallon) ATO reservoir.

I use a Jebao DCS9000 pump for my return pump. I run two Tunze 6095’s, a Tunze 6020 and a Tunze 6015 for internal flow, a Deltec protein skimmer, a Deltec Calcium Reactor and use Phillips Coral Care lighting.

All of which are controlled by my ProfiLux 4.

Tank TOTM_12_2019
My ProfiLux controls everything

For me, it’s all about my ProfiLux

It controls everything on my tank and I really mean everything. My lights, dosing, return pump, Tunze Streams, Protein Skimmer, Cooling, heating, etc. made it so my tank is “set it and forget it.”

The GHL Connect App is indispensable for me

It not only provides me the control I need, but it also notifies me if something goes wrong. Many think you don’t need a controller like the ProfiLux and while that may be true, when you have one and something goes wrong that the controller alerts you, you realize just how critical the controller is in your reef keeping success.

My GHL Powerbars

control everything that can’t be controlled by 1-10V interface or other PAB devices.

The PLM-ADIN card was an inexpensive addition to my system that provides me digital inputs which I use for the following:

  1. Feed pause, turns of skimmer and streams
  2. Maintenance mode (one hour) turns off skimmer, return pump, heaters, kamoer, a solenoid valve, calcium reactor, ato and doser that feeds limewater stirrer etc.
  3. Second maintenance mode that does the same same as two above but for two hours
  4. Floatswitch in skimmer cup which turns off the skimmer if it starts to overflow.


controls my Philips coralcare lights giving me more options to control lights than Philips software.

I decided to buy the KH-Director package

with a GHL Doser 2.1, when I switched from three-part dosing to a calcium reactor.  GHL KH Director® made tuning my calcium reactor quick and simple since it eliminated the need for manual alkalinity testing.

When I first set the Calcium reactor up, I had the KH-Director testing my alkalinity eight times a day. The frequent tests of the KH Director allowed me to see the results of the adjustments to the calcium reactor quickly and without the need for manual testing.

I ran the KH Director at eight tests per day until I had the calcium reactor dialed-in.  Now the KH Director only tests alkalinity in the mornings and at night giving me peace of mind knowing that my system is running optimally.

GHL Floatswitch sensor in skimmer cup which turns off the skimmer if it starts to overflow
GHL Dosers and KH Director are keeping my Alkalinity stable

My GHL Maxi Doser

is used for Kalkwasser additions on one head and the second head is used to add a bit of salt water to the tank to replace the salt water that the KH-Director removes for measurement.

My GHL Doser 1 is used to add Fauna Marin Color Elements.

In looking back, I believe my many years of success in freshwater tank keeping helped me be more successful in reef keeping.  It’s been an incredible journey with lots of ups and a couple downs but I truly have no regrets.

Equipment List:

  • 1 GHL ProfiLux 4 + PLM-ADIN
  • 1 GHL KH-Director
  • 1 GHL Doser 2.1
  • 1 GHL Maxi Doser
  • 1 GHL Doser 1
  • 1 GHL Powerbar STDL 4
  • 1 GHL Powerbar 5.1
  • 1 GHL LBF-AP
  • 2 X Tunze Turbelle Nanostream 6095
  • 1 Tunze Turbelle Nanostream 6020
  • 1 Tunze Turbelle Nanostream 6015
  • 1 Aquamedic KS1000 limewater stirrer
  • 1 Deltec skimmer i1500
  • 1 Deltec PF 601 calcium reactor, media Dastaco, Ph 6,05-6,06
  • 1 Deltec magnetic valve
  • 1 Kamoer FX-STP Pump
  • 1 DIY second chamber after calcium reactor
  • 3 X Philips Coralcare lights
  • 3 X Eheim 150W heater
  • 1 Jebao DCS9000 return pump
  • 1 DIY Battery backup with a 200A battery that is charged via a solarpanel on the roof. It’s connected to an inverter which supplies power to critical equipment such as my return pump, one Tunze 6095, the protein skimmer and of course my ProfiLux so I know what’s going on with my tank if the power goes out while I’m away from home. The battery backup can keep my system running for about 20 hours.

Livestock: Fish, Invertebrates, Corals


  • Brown tang – Zebrasoma Scopas
  • Foxface – Siganus Vulpinus
  • 9 Lyretail Anthias – Anthias Squamipinnis
  • Mandarin dragonet – Synchiropus Splendidus
  • Sailfin tang- Zebrasoma Veliferum
  • Yellowtail damselfish – Chrysiptera Parasema
  • Sixline wrasse – Pseudocheilinus Hexataenia


  • Clibanarius tricolor
  • Ophiure protoreaster
  • Tridacna maxima
  • Nassarius sp
  • Lysmata wurdemanni
  • Strombus sp
  • Trochus sp


  • Montipora Samarensis
  • Montipora Digitata
  • Acanthastrea Lordhowensis, red
  • Rhodactis sp green
  • Gorgonia sp purple
  • Montipora Spongodes
  • Seriatopora Caliendrum
  • Stylophora Milka
  • Favites Pentagona
  • Acroporo blue – Acropora sp
  • Pink Birdsnest coral- Seriatopora Hystrix
  • Green Button polyps – Zoanthus sp
  • Green Cauliflower coral – Pocillopra Damicornis
  • Chalise – Echinophyllia sp
  • Disc coral – Cycloseris sp gold
  • Green Star polyps – Pachyclavularia violacea
  • Green Guttatus birdsnest coral- Seriatopora Guttatus
  • Red, Blue, Green Mushroom coral- Discosoma striatus, ferrugatus and malaccensis
  • Organ Pipe coral – Tubipora Musica
  • Green and Purple Plate coral – Montipora Capricornis
  • Torch coral – Euphyllia Calbrescens
  • Green Trumpet coral – Caulastrea Furcata
  • Violet Trumpet coral – Caulastrea Furcata