Clown dominance /pairing behaviour?

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T-Bone Tyrone

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Reply #15

Nass snails do that! climb to the top then a sporting dismount as they come crashing down.

Cerith snails and some cowries will also move sand around.

with regards to the goby, you need one that will feed from the food you put in the tank, as not all will and some may be too shy, these usually end up starving, I had a yellow watchman (not a sulpher goby which is almost identical) in a previous tank, it would sift sand but leave it in piles and not scatter it around, my tiger watchman did the same too.

How are your levels looking?
I should really sort this out!!

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HK_Fuey

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Reply #16

Nassarius snails and some conch eat detritus, whereas a goby eats the critters that live in the sand (which would have processed detritus too).  I've chosen to go with a deep sand bed, in which case you can't add anything that will eat the critters living in it, or the DSB will fail and cause a lot of problems.  With critters living in it, it's a great way to reduce nitrates, phosphates, and even trap heavy metals (should they get in there).

Just another option to consider.

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Mol_PMB

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Reply #17

Thanks :)

I did a full set of tests 2 days ago (4 days after I added my clowns). Findings as follows:

Salinity 1.025
pH 8.3
KH 7.2
NH3 0
NO2 0
NO3 3
PO4 0-0.025
Ca 390
Mg 1220
Temp 27C

So, this looks OK except the KH is gradually dropping and the Mg is a bit low.

I added some sodium bicarbonate to boost the KH, and have ordered some magnesium chloride. I've also done a very small water change (about 2%) when adding some more zoa frags, and will do a 10% change on Monday - I'm away this weekend.

As for the livestock, the Mushrooms look great, most of the Zoas look OK but a few are closed up, not sure why but there are a couple of things that might possibly be hydroids that could be annoying them. I tried removing them but they have come back
The clowns are doing well, they are eating well and have coloured up a lot since I got them. Snails and crab seem OK. The Pavona isn't dead, but equally I haven't seen any polyps.

I'm not going to add any more fish this side of Christmas but I do plan to put in some more Nassarius snails and maybe a couple more zoa frags.

At present I have fine sand about an inch deep and quite a bit of brown stuff on it. I'm unsure on the deep/shallow sand bed question.
40L: Tiger pistol shrimp and Wheeler goby trio, peppermint shrimp, zoas, ricordeas, gorgs, tree
Plans for a new 250L Maldivian biotope...

Marty

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Reply #18

If you pushing up KH you need to bring calcium up with it to keep it into balance

Mol_PMB

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Reply #19

This is why I need a dosing system!
KH seems to be dropping more than calcium though.
40L: Tiger pistol shrimp and Wheeler goby trio, peppermint shrimp, zoas, ricordeas, gorgs, tree
Plans for a new 250L Maldivian biotope...

Marty

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Reply #20

If you just get a 3 channel doser and go the balling route I've found that to really suit my system and work well :)

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