Just as I managed to organise a replacement heater for the one that failed a few weeks ago (thank you D-D Aquarium Solution for the excellent support) something else has broken in my tank. 😕
I decided that it was about time that I gave the random flow generator a clean, it had built up a layer of coralline algae as all things tend to do in a reef tank with lighting. I assumed this was probably detrimental to the flow rate, I clean my powerheads regularly so why not the RFG? I pulled the unit off the return pipework but before I could even place it in some citric acid a bit fell off. My first thought was that one of the RFG had popped off the Loc Line but no, it had completely broken off along the lower portion. I went ahead and cleaned the unit anyway and then discovered that the other side had split too. Does acrylic become brittle over time in saltwater? Surely a bit of coralline can't be stronger than acrylic?? I didn't drop it or treat it harshly so I'm not quite sure what to make of it to be honest.
The tank has survived to reach its second anniversary today, how the time has flown. Needless to say after two years of running, the exciting stocking phase is pretty much over with (although never say never, lol!) and I've moved on to the not quite so exciting fragging phase.
The first coral that needed a proper pruning was the Seriatopora hystrix. It has grown in rather an unruly manner and some of the branches were growing over the top of the clam (a definite no-no!) and a good section was also now obscuring my view of the sun coral, making it harder to feed. The tips are easy to frag but I found that when trying to cut branches further down, whole sections would break off instead, so I removed far more of the coral than I intended. Oh well it will recover given time (assuming that the Utter Chaos zoanthids don't take it over completely).
Finally, I am able to see the sun coral in all its glory again. As you can see it does try to keep the branches of the Seri in check by stinging and killing off the tips that stray too close. If you look closely you can also see a few of the baby sun polyps that have settled on to the rockwork to the left. The whole tank is pretty much spotted with baby suns right now, even the Scolymia already has one settled on its skeleton.
Talking of sun corals, the Dendrophyllia frag I added in August is doing really well, it started out as 3 heads and now has 5, with another 4 more developing. This seems like a much faster growth rate than the Tubastrea, or maybe it is just more noticeable due to its branching formation.
I have also been lucky enough to pick up another Dendrophyllia frag from a fellow reefer. Morphologically it looks the same as the yellow one so it's possibly just a different colour morph (or perhaps it's a different species, I don't know). I so looove these corals, I know that they are only at their best after the lights go out but I simply don't care, I think they are spectacular! I sometimes wonder if I should have just gone with an NPS tank and be done with everything else, lol! Ideally I'd prefer to feed these corals during the day so that I can admire their beauty with the lights on but it's so darn frustrating. The wrasse try to steal the food and 98% of the time they are successfuI before the polyp has a chance to fully ingest it. No matter how I defend the coral, the bloomin fish sneak in and grab it most of the time. It's just not worth the effort and stress it causes (to me and the coral). Oh to be outwitted by a few fish....
Anyway back to fragging. The second coral that needed reducing in size was the green plating Montipora, I'd been psyching myself up to do this for months. I knew the time had finally come when the Acanthastrea corals growing directly below it started showing signs of struggling, they were at that point pretty much completely shaded out by the coral above. I kept putting it off because the Montipora had grown into such a perfect saucer shape and looked lovely, I knew that once I'd had at it the shape would be ruined. Unfortunately I didn't take any photos of either this or the Seri before I began chopping, I don't know what was I thinking? Anyway the plate coral may look quite delicate but it was surprisingly hard to frag, lower down the skeleton is deceptively thick. I took off a good couple of inches around the edges on the right-hand side and probably should have done more but that's a problem for another day.
Now that the there's a bit more light, the Acanthastrea 'Lava Glow' looks good again. Its smaller brother to the left of it is unfortunately still somewhat shaded. However this coral has never really grown well even when it received better lighting. I did try to move it to another location recently but it's fused to the rockwork so I'm afraid it's there to stay.
The third coral that needed to be fragged was Acropora hyacinthus. I've been nipping the front tips off here and there for a while as they grew towards the front glass but more drastic action was needed this time as I was no longer possible to clean the glass in front of it. Due to the fused branch growth it was now impossible to remove individual bits so the best remedy for the long term was to remove the entire front half of the coral and as with the Seriatopora more was removed than intended. In fact there's not much of the coral left now, just the base and one main branch. Hey ho!
Whilst fragging the A. hyacinthus a large chunk snapped off at the base and fell right on top of the Scolymia. Argh! The Scoly looked very unhappy for a few days and remained shrivelled up, naturally I feared for the worst but fortunately the reefing gods were smiling down and it has bounced back to full glory once more. To say I'd have been upset if a frag that originally cost £15 took out a much, MUCH more expensive coral would have been a bit of an understatement to say the least, lol!
The Scoly loves to eat but never shows its tentacles till after the lights go out so I only feed it at that time. I offer it krill or LPS pellets once or twice per week.
The Favia has grown from a frag the size of inch squared into quite a big beastie and has spread out not only over the rockwork but also out onto the sand towards the Acanthastrea to the left of it. There used to be a good gap between the left and right rock piles, a space in which the conch could easily pass through but now his shell won't fit through at all. I fear that it's only a question of time until the two corals start fighting each other and there won't be much I can do about it as they are both well and truly encrusted on to the rockwork, It won't be pretty I'm sure!
The Heliofungia also continues to do well, there's no sign of it wanting to break away and wander round the sand (which is fine by me!) nor are it's offspring. As you can see from the photo below the coralline algae growing on the glass is a bit of a pain. I want to scrape it all off but I don't want to damage the coral during the process. Everywhere I've read says if the flesh gets torn then it's "hasta la vista baby!", so I feel it's best to just leave it be.
Jessie the Rainford's goby has settled in beautifully and whilst he always gives way to the much larger wrasse at feeding time, he's not shy at all. He roams all over the tank, pecking at algae and chewing the 'sand'. He now feeds really well on frozen food and tries his level best to grab as much as he can before the greedy wrasse hoover it all up, I still offer him a bit extra via a pipette to make sure he gets enough to keep his little belly full.
Sadly I haven't seen Candy the Red Striped goby (Trima cana) since the 8th October. He/she was one of the first fish added to the tank on the 3rd December 2016. I understand that nano gobies do not have long lifespans, only a couple of years, so I'm assuming it was just his time. Two years is just too short sadly. I can't help but wonder how long Hop the Nudus goby will be around for now. He was also added at the same time as Candy and he already lost his mate earlier this year (March).
Sadly I don't have a recent(ish) photo of Candy to share as once the zoanthids grew over his rock he took to hanging out behind Lobophyllia where he was difficult to photograph. I'll post this sneaky shot taken last year instead. :'(
The rest of the fish are fine.
I have a new invert (see, I can still squeeze more stuff in lol!), a crinoid squat lobster. I tried keeping one of these adorable little crustaceans back in 2016, when the tank was relatively new. Sadly it vanished after just 20 days and I vowed not try another... then I came across this little guy. I reasoned that now that the tank is mature this itty bitty crustacean would stand a better chance at survival so he now resides in my tank. As I type this, it's been 27 days since introduction and I'm happy to say that he's taken up permanent residence amongst the branches of Seriatopora, hiding underneath the relative safely of the Utter Chaos zoanthids during the day, he blends in extremely well with the orange of the polyps. He's been named Jaffa and readily accepts all sorts of food from the pipette, I am hopeful he will do better than Stripes did.
Jobs I still need to do. I need to frag the branches of the Stylophora that are growing too close to the glass on the left-hand side and try and remove some of the many Utter Chaos zoanthids that have spread round the tank (I really regret adding those devils).
I've run out of time now so I'll sign off with the obligatory full tank shot.
To this, in two years.
Everything seems to be ticking along nicely at the moment. The KH dipped a little following the addition of the carbon dioxide filter and I've had to up my dosing rate as a consequence. I'm hoping it means that the corals are happier with the higher pH values and have increased their growth rates. Unfortunately perhaps, also due to the dip in KH (down from approx 7.0 to 6.5), the coralline on the back wall took a bit of a beating. It's not a problem as such but clearly I need to keep a better eye on the alkalinity level.
Swipes the porcelain crab, Petrolisthes galathinus, has settled in nicely and is proving to be a star attraction with the rest of my family (after Lurch the conch, who still remains the absolute favourite inhabitant). She has made her home underneath the left-hand rock pile and spends the majority of her time hanging out with Edna & Kylie (the two wrasses), filtering out small morsels of food from the water.
Ming, the Pom Pom crab (Lybia sp.) has also settled into the left-hand rock pile, in a small hole, way under the ledge. He's still pretty shy and we don't get to see him out in the open very much as of yet, I did manage to capture a sneaky shot of him in his hidey hole using flash today however.
It's pretty time consuming trying to take individual photos of all the corals individually on the same day so there just a small selection below, I'll work on adding the rest later in the week hopefully.
To finish, I just have to share a couple more shots of Crystal the Red Spotted cleaner shrimp, Urocaridella antonbrunnii, because she is the most incredible looking shrimp.
This tank is approaching the 6 month mark (on the 16th April). Wow, where has the time gone to? It's now well and truly in the 'spotty phase', the back glass is covered with spots of coralline algae and spirobid worms. I have scraped it once already and am now in two minds if I should do it again. Does it look natural or does it just make the tank look messy? I can't decide, answers on a postcard please. :o)
I've had to move the Lobophyllia yet again. The Lobo was very happy in its last spot but, darn it, the snails (Mr Conch I'm looking at you particularly!) just kept knocking it over no matter how hard I pushed it in to the sand. So now I've glued the base of the skeleton to the rock work on the right-hand side at the back. It's not great for viewing but at least it won't get damaged there. Fingers crossed that's the last time I have to move it!
Acropora sp. #2 still appears to be red bug free and the PE looks good. Acropora sp. #3 is on the mend I think, to my eye there appear to be less blistering now. It's not completely out of the woods yet but I'm feeling a little more confident about its future. General coral colouration is not great but I'm not too concerned about that at this point.
My mysterious hitchhiking crab has thankfully moved away from the S. hystrix and has set up home in the uppermost right hand rock. I still don't have a decent picture of him to show I'm afraid, he moves like lightning whenever I get close. So far he's not attacked or eaten anything that he shouldn't, I regularly observe him scraping at the rock work with his spoon shaped claws and he does a great job of keeping that area clean of algae and detritus. He has grown considerably and I am probably not helping matters by occasionally feeding him directly. I have tentatively identified him as Chlorodiella nigra which is a member of the Xanthidae crab family. According to my research they are generally fine when smaller but can become troublesome as they grow and their appetite increases. I am investigating removal options just in case.....
Yesterday afternoon I introduced probably my last fishy additions for this tank, they are still settling in at the moment, pictures to follow hopefully later on in the week.
So my tank seems to have passed the first coral test, all of the frags I introduced 12 days ago are still alive. Phew! The Stylophora is even showing signs of growth. I think it might be time to add a few more at the weekend and maybe even another fish.
The coralline has really started to take off, I'm seeing spots of growth on the pumps and on the back wall too. I am undecided as to whether I should scrape it off for a nice clean look or leave it au naturel. I'll live with it for a while and see how I feel when the coverage increases. Spirorbid worms have also begun to appear in the DT and in the sump too.
The tank parameters as of this morning are:
Specific Gravity 1.026 d SG
Alkalinity 6.85 dKH
Calcium 425 ppm
Magnesium 1270 ppm
Nitrate 0 ppm
Phosphate 0 ppm
I'd like to tweek the KH and Mg up a bit more but those values are not too bad. I am extremely surprised not to have any detectable NO3 or PO4, this is a bit of quandary for me, I don't think I've ever had a tank with no (or low amounts) of NO3/PO4. I guess the Siporax and refugium must doing their thing, it is early days though and stocking is light I so expect that the levels will rise soon. I do have a bit of furry algae growth on the rocks and a film of algae forms on the glass so I know that there must be some nutrients hidden in there even if the tests say different.
Hi, my name is Lisa and I live in Derby, UK. I am a self-confessed reefaholic!