GETTING READY FOR CORALS PART III- NUTRIENTS & SUPPLEMENTATION IN THE DT
Hey Guys, it has definitely been a while, so I'll catch you up on the progress of the tank.
The tank went through a decent ugly phase (despite my best efforts to avoid this). To help move things along though, I used Brightwell's Microbacter Clean to rid the rocks and sand-bed of some sort of algae that was building up, and it just so happens that this stuff really worked. I unfortunately don't have any "œbefore-and-after" pictures, but went pretty aggressive with my approach for about one month, where I added the product daily at the recommended dosage, and then I would do one weekly manual water change (in addition to my automated water changes) where I would scrub the rock and siphon as much of the algae out as I could. I say the product works because, despite my manual removal of algae, I did notice that, not only did the algae's growth slow after about a week to 10 days of use, but I also noticed that the algae came off the rocks MUCH easier as the weeks passed. From my understanding, the product is intended to make it easier to remove nuisance film/algae from surfaces, rather than be relied upon to remove those items by itself, so a little elbow grease is necessary for the product to work its magic (I also went through a few rolls of my fleece filter roller during this time). After about a month of dosing Microbacter Clean, I switched over to Microbacter 7 since I saw some cyano on the sandbed and spots of filamentous algae popping up. After two weeks of dosing Microbacter 7, the sandbed and rocks are all looking pretty good. In fact, I can actually see a ton of coralline algae spots growing, so it looks like the tank is finally ready for the first phase of corals. Here is where the tank stands now:
Major Element/Ion Supplementation:
Now that my nutrient levels are on par and I'm not growing a forest of algae, I've started the process of getting the major elements/ions in optimal ranges and testing this on a regular basis. My approach with supplementing the major elements (Ca/Alk/Mg) is somewhat gradual.
DAY 1: At first, with only coralline algae and elemental needs, I'll just try to get away with dosing kalkwasser, which I have been dosing separately from my ATO using the Ecotech Versa continuous duty peristaltic pump. My limitation here is that I will only be dosing a maximum of 5 gallons of kalkwasser per week so that I only have to mix it up in a 5 gallon bucket and swap it out (easy maintenance). I might just get a bigger bucket or a Kalk reactor if I find I'm going through kalkwasser faster than this.
DAY 2: Eventually, I will add on dosing using a modified version of the Balling Method (dosing 2-part using the BRS Calcium/Alkalinity, and using the Tropic Marin Part C). The reason I've decided, at least initially, to go with the Balling Method is purely to maintain stability among the major ions as much as possible (since the Part C is dosing all of the elements EXCEPT for sodium chloride so as to achieve ionic balance and avoid instability in salinity), and to try and keep my pH up.
DAY 3: Ultimately, I may add on a Calcium Reactor for the long-term. Having said that, like I said before, I'm not sure I will ever completely move away from dosing kalkwasser due to its benefits in increasing pH, and I also really like the "œtunability" of the 2-part dosing, where I can dose to my tanks needs (not sure if Alkalinity and Calcium will be consumed at different rates). I might even go with a 3-in-1 approach eventually, dosing Kalkwasser for the pH benefits, run a Ca Reactor to provide the main Ca/Alk supplementation, then use the 2-part dosing to account for any uneven consumption rates between Ca/Alk or elevate any one element.
And how will I make sure I am within these optimal ranges? Well, I do have a few test kits on hand, but I actually bit the bullet and took advantage of the Black Friday deals several months ago (plus a decent amount of store credit I had built up) and got the Neptune Trident. I'll continue to test Alk/Ca/Mag on a somewhat regular basis (to make sure the Trident is doing its job), but my testing schedule just got A LOT easier.
pH Goals:
Something that I didn't really concern myself with on my last tank was trying to keep my pH up. I don't plan on taking any extreme measures at this point, but I'll use this time to see where my pH is at with my Ca/Alk/Mg at optimal levels and with the lights on, and determine what, if anything, I need to do in order to get it as close to 8.3 as possible. More of a Day 2 item (or in my case, Day 202 or so).