Thank you Pete!
Sorry for the long break, life got in the way, as it does. I've made A LOT of changes since November. My rock and rock wall were completely covered in algae, and the rock wall was taking up too much valuable real estate. As such, I tossed the rock wall and pulled all the rock out. I also decided I didn't want to risk the flat worms, so I pulled all the sand out as well and sanitized the tank.
Starting over, I decided I wanted to go with live rock. I do most of my shopping online as the closest LFS is over an hour a way. I decided to go with Walt Smith 2.1 and it was a tossup between TBS and LA. I went with LA due to cost. Unfortunately, I made a very stupid assumption that the Walt smith rock provided by LA was live. It didn't clearly state on the website if it was live or dry, but they required two day shipping, so I assumed it must be live. I mean, who would require two day shipping on dry rock, right? Well, apparently LA required two day shipping on dry rock :headwallblue: I contacted their customer service and they were very defensive and dismissive and stopped replying after a single response. I've always had good luck with LA, so I won't let one experience stop me from using them, but that one definitely stung. Luckily I was ordering rock for an 18 gallon and not a 300.
For Christmas I got the Apex FMK and PMK. In order to install the FMK, I reversed my bulkheads in my drain. I put the 1" meter on my full siphon and the two 1/2" meters on each of my returns. Each meter is directly connected to the bulkhead.
Untitled by
Mike Burns, on Flickr
I also installed the VCA random flow generators on each of the returns. These things are awesome and create very interesting effects. The T for the return pip is closer to one of the returns, so one return is pushing 95 gph and one is pushing 99 gph. The return averages about 12 gph more than the two return combined. I just split the difference and assume the flow through the tank is ~200 gph. Total system volume is about 18 gallons (display tank is 18 gallons and sump volume is about 4 gallons, I round to 18 due to displacement), so I have roughly 11x turnover between my sump and display.
Apex Flow Meters by
Mike Burns, on Flickr
I haven't played around much with the PMK yet. When I get around to it, I am going to set it in a few different positions for 24 hours and graph the full daily PAR cycle for each spot.
I also moved my probes to the overflow box, which meant I had to move the light mount. I moved the light mount to the side of the overflow box so that I could still put a mesh top over the tank. The only other thing that blocked the top was the cord for the Tunze nano, but luckily the cord fit in the overflow slot, so I pushed it down. Now I just need to buy the mesh top and install it.
Untitled by
Mike Burns, on Flickr
In the sump I added SM Drop .2 ATS and moved the skimmer to the fuge chamber. Since I added the ATS, I'm not going to put substrate or algae in the fuge. I'll add some rock to the skimmer/overflow chamber.
Untitled by
Mike Burns, on Flickr
Last week I added Dr. Tim's One-and-Only and dosed ammonia to start my fishless cycle. Here are the logs so far:
2/26 - Turned skimmer off, added One-and-Only, and 70 drops ammonia. Ammonia tested at 4.0.
2/27 - Ammonia tested at 2.0.
2/28 - Ammonia tested at 2.0.
3/1 - Ammonia tested at 2.0.
3/2 - Ammonia tested at 2.0, nitrate tested at 25.
3/3 - Ammonia tested at 1.0, nitrate tested at 25. Turned skimmer back on.
I'm going to keep testing daily until ammonia tests .5 or lower, then add 17 drops of ammonia. If it doesn't drop to .5 or lower by 3/8, I'm going to do a gallon water change, then dose 17 drops.
I have some light diatom algae on the sand bed, which was expected. I left the lights on during the cycle and am going to leave them on so long as their is minimal algae growth. The ATS has been running for the full cycle.
The biggest issue I have right now is surface scum. there's a dusty/oily layer on the surface and the returns/Tunze nano aren't enough to break it up. The returns break up a few square inches each. The return with 4 gph lower volume has significantly less impact on it. I ordered 4 loc-line elbows to raise the height of the random flow generators. This will both increase surface agitation and significantly reduce the amount of water that back siphons when the power goes out. In the picture below, directly above the closest outlet, you can see a clear streak. Everything else, except an area above the other nozzle, is dust/oil scum.
Untitled by
Mike Burns, on Flickr
I have five last things to do to the physical setup.
1. I need to buy and install the mesh top.
2. I need to mount all of the Apex stuff and clean up the cabling.
3. I am going to install the COR-15 as soon as I can get one. Kicking myself for not pre-ordering as they are all sold out now.
4. Install the loc-line elbows.
5. Install a door on the front of the stand.
I've also decided to change up my stocking plan. For fish I am going to get a pink streaked wrasse and a mated pair of gobies with a symbiotic shrimp. I am also going to get a fire shrimp. For coral I am going to go predominantly SPS with a few softies and LPS, and of course a clam.
Assuming the cycle progresses smoothly I will be planning on adding fish in the next couple of weeks. LA's Diver's Den has a few mated goby/shrimp trios, so I will go with whatever the best available choice is when I order.
For fish food I plan on blending a seafood medley with spirulina, selcon, garlic, and ginger. I will also do occasional live baby brine, maybe once a week. I still need to figure out what I am going to do for vacations. I will likely get the Apex auto feeder and have it dose pellets while I am out of town, as well as ask local reefers to stop by.
I think that covers everything. Here are some more pics.
Untitled by
Mike Burns, on Flickr
Untitled by
Mike Burns, on Flickr