300g 9 footer part 2

[popper]

Yeh the tank is up again. Trying to keep it minimal this time. FOWLR with easy corals.

2x fluval fluval sky LED
RSK600
coralife 18x 36w UV
2x icecap 4k gyre pump
Top fully covered with several glass panels to prevent evaporation

Fish only require salinity 1.020-1.025. Emptied two buckets of 160g IO salt and the salinity is at 1.023. I'll.keep it at that level for now.

I need more rocks and easy corals.

 

[spuri87]

RIP electricity bill.. can’t wait to see the monster in action!

 

[popper]

RIP electricity bill.. can’t wait to see the monster in action!

If only PG&E is like a casino. I would have a lot of comps.

 

[gmdcdvm]

Wish I had room for a tank this big. Looks good.

 

[Alexander1312]

I am glad my floor cannot support a tank this big.

Which coral will be ok with 30 PSU?

 

[spuri87]

Which coral will be ok with 30 PSU?

I had always thought that stability is more important than precision.. I see you and @Slingfox mentioning the need to measure salinity accurately.. can you please guide me why is 35 PSU (1.026 sg) so important? Is it coz they are used to this salinity in ocean? Or the trace Elements are appropriate at that salinity level that keeps the corals happy.. I keep my tank at 1.024 and that might be the actual reason the SPS corals weren’t happy and I have been blaming high nutrients all this while.. honestly, soft corals and LPS seem to be doing great at 1.024

 

[Alexander1312]

I had always thought that stability is more important than precision..

I always thought this statement was fraught. What's the point of having a stable lack of nutrients, or a stable crazy high amounts of them, or stable out of whack salinity. I think this is just an excuse, for not being able to put in the effort to be precise.

I see you and @Slingfox mentioning the need to measure salinity accurately.. can you please guide me why is 35 PSU (1.026 sg) so important?

Because we obsess over precision. haha. It's really not about 35PSU, 34 or 36 might be fine too. But if I want to set it the global ocean average, you want to have a way to do it. With the current tools, it often seems extremely difficult to get it to a rather precise 35 PSU, which is super frustrating.

Is it coz they are used to this salinity in ocean? Or the trace Elements are appropriate at that salinity level that keeps the corals happy..

There is a few complicated answers to this, suggest to ask AI, but in the most simplest form, yes, this is the reason. Keeping trace elements in optimal ranges is much harder at other salinity levels and if you care about optimal levels, then using 35 PSU is the most established way to dial them in.

I keep my tank at 1.024 and that might be the actual reason the SPS corals weren’t happy and I have been blaming high nutrients all this while.. honestly, soft corals and LPS seem to be doing great at 1.024

Maybe, not sure. My question was sincere, as I never went down that low. For a FOWLR tank ok, but for a reef tank I would go with 35 PSU / 1.0264 sg, and go from there.