Crazy two days of tank maintenance/cleaning... glad it's over.
Started prepping for this a couple weeks ago. I was ordering parts and preparing to build this sand bed vacuum cleaner:
It doesn't really help that he doesn't list all the parts, or know their names, but I made it work. Well, I built it. Whether or not it really works is a little questionable.
So I got it done yesterday, I'll post pictures some other time, don't feel like going downstairs to get it all.
First step was to clean the sand bed. The tank has been up since 03/2020 and I haven't done much with cleaning the sand. Figured snails/etc. would take care of most of it. Took a while to get the siphon working right, even with the Sicce 1.0 pump on it.
Holy crap was it dirty! The 50 micron filter clogged in a matter of 10-15 minutes, if that long. So much nastiness floating around the tank.
I gave up on the canister/filter and just hooked it up so that the vacuum went right to the Sicce and I sat that over my filter sock holder. Much better throughput/suction.
Ended up going through 5 (!!!!) filter socks and the skimmer was going nuttty.
Doing all this was in preparation of using Flatworm Exit today before my water change. Cleaning the sand bed and rocks (turkey baster) dislodged and sucked up a lot of them.
Today I sucked out as many as I could see (in larger groups, skipped the onesie/twosies), blew out the rocks again, and then set up the mini-reactor with some carbon.
Ended up dosing about 1/2 the Flatworm Exit bottle. Did two capfuls and then about 45 minutes later a half capful. It started working within minutes of the first capful going in.
After about 20-25 minutes I ended up draining 5-6 gallons of water and replacing it with fresh-mixed saltwater. Figured I'd suck out a bunch of floaters and junk out.
Boy are they ever right about what you see is just the tip of the iceberg. I mean, it wasn't like my water went totally dark or anything... I was just surprised how many it turned into "swimmers" (term in the directions).
I think this whole Flatworm Exit process took just under 2 hours and then I decided to do my water change. Normally I do 20 gallons. Today I did the 5 in the middle of the treatment, and then another 30 (total water volume is about 150G between the DT and the sump).
As far as I can tell I haven't lost any livestock; fish, corals, inverts, nems, etc. are all still accounted for.
Some of the corals are PO'd and the fish aren't swimming out-and-about as they usually do, but I think it's mostly because I've been messing around in their home for 5+ hours today.
I've emptied the skimmer cup 2-3 times already. Will probably have to do it again before I go to bed. I'll let the carbon run until tomorrow and then I'll change it out and probably run it for another day or two.
What I've learned from all this???
1. I need to clean the sand more often.
2. I need to clean the rocks more often.
3. I need to feed less; I feed twice a day. 5ml of my defrosted frozen mix and a little bit of dry pellet mixture. Let it soak for a minute or two and dump it into the tank. Nori in clips every other day.
4. I need to go back to more flow (Jebao Gyres were put back in during the Flatworm Exit treatment); now I have the two Gyres and the two SLW-30s in there. One of each on each side of the tank. Gyre towards the back on one side, and the front on the other side.
5. I need to get better at dipping corals before introducing them to my tank.
6. I really don't like these marathon maintenance days.
