I’ve had a particularly busy week, fuelled by time off work with only life admin planned. When I have time off, I invariably obsess about my tank and this week has been no different
This tank is now 6 weeks old and it’s starting to show signs of looking like a reef rather than a rock pool. Some of the zoas are spreading quite quickly, so much so that i’ve had to isolate two of them at the foot of Mount KrakaZoa so the don’t take over. Although I will admit that most are taking a bit more time and choosing to enjoy the growth journey rather than cutting to the chase ;Yawn
I’m starting to get a few spots of coralline algae on the outlet pipe as well as some of the rockwork. Because of that, I won’t be getting an urchin now although I would still like a Mexican Turbo snail for my CUC.
I had a daytime trip to my 2 favourite LFS on Tuesday. I love going to an LFS when it’s quiet! I got some really useful information on clams - mainly on selection and care. I then watched
this video which made me realise how diverse clams can look. The guy in the vid also said you can get a Maxima in Japan for $5… in a sushi restaurant! ;Facepalm
In equipment news, I managed to break my water change heater last week. Tried doing a w/c without heating it (new water 20 degrees, tank 25 degrees) and it caused more strife than it’s worth! Overall temp dropped enough to set off my Simply Aquaria alarm which beeped at me for half an hour until the tank warmed up. And, while the drop caused no visible harm, it can’t be good to drop by a degree immediately then increase again in the space of 30 minutes.
So I bought a new heater. I decided to go for a Schego 200w that has gone into my DT and use the existing 300W cheapo from my DT for water changes. My upgrade will have a 300w and a 200w Schego so I see this as ‘spreading the cost’ of the upgrade rather than spunking money unnecessarily (we’re good at justifying purchases as reefers). I’ve put my hand next to the heater in the photo to show how small these are! I was convinced it’d be too big when I saw the box but it’s fine.
As I said in my last update, I want to have my Speckled Rainbow zoas and Darth Mauls on a separate rock so they don’t take over the world (well… MKZ). I have a spare zoa rock with 4 frag plug holes lying around for the DMs but I needed a 2nd rock for the Rainbows. As I picked one up in the shop, I saw a nice piece of Real Reef branching rock and it gave me an idea ;Bookworm
I’ve always wanted to see if you can drill RRR easily. So I bought 2 tile drill bits (one the size of a frag plug and a smaller one for making a pilot hole) and gave it a bash. As it turns out, it’s not that easy with the branching stuff - you can get most of the way without too much bother but I decided to stop before it snapped. I drilled at the base where 3 branches join so there’s more bulk. I think you’d have no chance drilling a frag plug size hole (width and depth) in a single branch. I wonder if it’d work with a plating piece though when you can probably drill all the way through...
I’ve wanted to make interesting structures for zoas/encrusting montis to spread over for a while now so this is the start of my experiment with that. I think the zoa rock might work better with zoas because they’ll grow evenly whereas they won’t grow on the shaded side of this RRR stick (IME, encrusting montis will to an extent) but it still has the potential to look pretty sweet in 6 months. The Darth Mauls are now on the zoa rock so we’ll see how that goes.
The frag plug is near the base and the whacking great white bubble you can see is super glue. The white specs are micro bubbles released from the RRR that disappeared quickly.
The Darth Mauls are starting to look awesome and are already spreading quickly. Here’s a close up which looks a lot like the Milky Way to me (as in outer space not the deliciously underrated chocolate bar). They look amazing close up but they won’t start to look that good from a further distance until there are 20-30 heads rather than the current 4.
I emptied my chaeto reactor for the first time. It came in with a decent haul of chaeto - here’s the before and after pictures.
Before
After
It needed a bit of a clean which looks like it will be a regular thing. Maybe once a month, i’ll need to empty it, clean the light tube and the tube the light tube sits in to keep it running at maximum efficiency. You will definitely need a pipe cleaner if you get one of these!
The light spill suddenly reappeared after i’d emptied it though! Not a lot in the way of micro fauna in there - I didn’t see any amphipods or similar, just a few asterina starfish ;Sorry
I’m happy with it so far - keeps my sump tidy, massively reduces light spill and stops chaeto strands clogging my return pump. It’s also keeping my nitrates below 5 on its own - I have no skimmer - although phosphates are creeping up a little.
Final kit update was to install a motion detector light in the sump cab that comes on when the cabinet doors open. I bought this for my last tank but it was too dim to light up a 3 foot cabinet. It’s perfect for a small cabinet like this though.
In tidying news, I re-purposed an ikea filing cabinet to take over from my fish cr*p tray that used to live under my sofa. I’ve inventory’d every drawer so I don’t have to root around every time I want sommat. Yes, it’s dorky but if the hat fits…
My cat ;Cat currently has fleas so I've had to spray the house with flea killer. I only did upstairs for fear of wiping the tank out if I did downstairs too. I also put some fresh carbon in the sump and did a (scheduled) water change the day after. No apparent ill effects in’t tank so I was clearly being paranoid and overly cautious.
Water levels are currently as follows:
Salinity 1.025
Alk 8.5
Nitrate 3ppm (down from 5)
Phosphate 0.14 (up from 0.11)
I think the high phosphate could be caused by a build-up of pellets at the foot of the weir ‘well’ that I mentioned last weekend. I flushed them through the other day then changed the filter sock. I tested the levels 2 days after doing so and there was still no change so i’ll put a small bag of rowa in the sump at some point. My acans could look a little brighter but no real dramas so there’s no rush to sort phosphates for now.
Oh, yeah. I almost forgot. I bought a clam yesterday! I went back my LFS after seeing a few there and picked out a beauty. It’s a Tridacna Maxima and it’s ruddy massive! It has pride of place in the centre which is also to give it good light.
I love that they recede their mantles when you shade them from light

That gives a tank the ‘wow factor’. I had friends round for dinner last night and they actually gasped when I demo’d it! It’ll be a bit of an alk sponge but I can deal with that. I can't quite work out why more people don't have clams - it’s absolutely spectacular looking and you don’t get many blue corals so it adds variety. Maybe it’ll die in a week then i’ll understand!
I’ve turned my lights down a bit and have set them to acclimation mode for 2 weeks - ramping up slowly from 20% to 35%. I could be being paranoid but it looks like it has a couple of very small, faint white patches. I’ll just monitor it for now.
I’m absolutely fascinated by it - it’s a really interesting animal and I can see myself getting a few of these beauties in time. Even the shells are mesmerising!
In order to accommodate my new BFF, I had a mini re-scape. LPS moved from right to left and Rainbow/Darth Maul zoas moved to the right. That looks much better - I now have colour/movement in places where the tank looked a little bare/flat and the clam doesn’t block anything interesting from my usual viewpoint on the sofa.
Here are a billion photos of the clam ;Drool
Here are a couple of FTS to round off the update. I’m going to grab a cuppa and stare at my clam (not a euphemism

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