The Reef Aquarium of Jonas Roman

jonasreef2.jpg

jonas_profile.JPG

My name is Jonas. I have been devoted to this hobby since 1992. I have had several aquariums with different profiles, and this is my latest one: a SPS dominated, 650 liter reef, one year after start. Some inhabitants and corals are from my previous smaller aquarium, thus some species are around 2.5 years old under my care.

I am particularly interested in the underlying biochemistry.  I have always been fascinated by systems based mainly on natural filtration methods and have made an effort in writing some materials for my aquarium friends concerning biochemical issues.

Advertisement


DSC_0193.jpg

System and Methods

Summary of equipment:

  • Skimmer: Bubble Magus Curve 5 (run only at night)
  • Biological filter system: DSB+macroalgae refugium and Bioballs/Siporax
  • Calcium reactor: Deltec PF601
  • Circulation: 3x Ecotech vortech MP40WS regulated by Apexcomputer
  • Lighting: Pacific Sun Pandora (3x135W LED plus 4x54W T5)

Maintenance:

  • Water change (15%) every 4th week
  • Activated carbon intermittently
  • Weekly cleaning of the mechanical filter
  • No additives
  • No GFO

 

    DSC_0141.jpg

      The filter and water purification is based mainly on natural biological filtration in the form of a DSB and a Caulerpa macroalgae filter, both located in a refugium. The lighting of the refugium is reversed, thus lighting the macroalgae 12 hours at night to obtain higher pH at night.

      I have minimized the skimming and only use a small skimmer (Bubble Magus Curve 5) at some hours during the night.

      The Calcium and KH “issue” is solved by a Deltec calcium reactor (Deltec PF601).  At the moment, it is running only in the daytime to minimize the pH drop at night. The return pump is a Jebaco 6000 producing around 4000l/h, and thus this is also the circulation above the DSB.  Before the water enters the DSB+algae refugium, it passes a mechanical filter, and after that bioballs and Siporax to strengthen the biological capacity and make sure that the nitrogen cycle is completed in all steps.

      DSC_0157.jpg

      I use no additives at all – no trace elements, no organic additives, only water changes of 15% every 4th week. I do not feed the corals but rely on heavily feeding the fish instead. I use some activated carbon intermittently. I use no GFO because my nutrients are very low already.

      Advertisement


      The circulation is handled by three Vortech MP40WES, regulated by the Neptune apex cycling between a lot of different circulation programs during the day.  The Neptune apex computer also monitors and regulates the rest of my system.

      DSC_0138.jpg

      I sometimes submit water samples to Triton Labs for plasma-analysis (ICP-OES) to be sure I am on the “way.”  My current water parameter is around:

      • Calcium: 425 ppm
      • KH: 8.5 dKH
      • Mg: 1350 ppm
      • Sal: 1.024 g/l
      • Temp: 25 C
      • Nitrate: 0.2 ppm (Salifert)
      • Phosphate: “0” (Hanna checker). 0.016 ppm (Triton ICP-OES-test)

       

      DSC_0158.jpg

        Livestock

        I have a heavy loaded system with a lot of healthy fishes. No fish have died since i started.

        Fishes

        • Valenciennea puellaris
        • Amphiprion ocellaris
        • Pseudoanthias squamipinnis (10x)
        • Naso lituratus
        • Pomacanthus imperator (juvenile)
        • Acanthurus olivaceus
        • Zanclus canescens.  I have had my Moorish Idol for 8 months ago now 🙂
        • Euxiphipops navarchus
        • Paracanthurus hepatus
        • Centropyge loriculus
        • Halichoeres melanurus

         

        DSC_0171.jpg

        Advertisement


          Corals

          • Euphyllia glabrescens
          • Montipora digitata, confusa, and spp.
          • Acropora millepora
          • Acropora formosa
          • Acropora gomezi
          • Acroporatumida
          • Acropora carduus
          • other Acropora spp
          • Clavularia viridis
          • Zoanthus spp
          • Acanthastrea spp
          • Turbinaria reniformis
          • Seriatopora hystrix
          • Porites cylindrica
          • Stylopora pistillata
          • Caulastrea furcata
          • Tubastraea sp.

           

            DSC_0118.jpg

              Invertebrates

              • Clibanarius tricolor (10-15)
              • Clibanarius diguiti (10-15)
              • Astrea tecta (~50)
              • Collospongia spp
              • Lysmata debelius
              • Hymenocera picta

               

              Additional Photos

              DSC_0183.jpg
              DSC_0164.jpg
              DSC_0181.jpg
              DSC_0186.jpg
              Category:
                Advanced Aquarist
              Avatar
              About

               Jonas Roman

                (1 articles)

              Leave a Reply