yuma not doing well

[CFOh]

yesterday calibrated my pH pen, seem like it is way off calibration. so new verify reading is 8.1.

my tank temperature is maintain at 26ºC.

i assume no pest or fish cause i only have 3 fish in my tank. should be relatively peaceful for the yuma.

Then make sense now... ok... I suggest try step 4. that I proposed and also bring your salinity down to ~1.022 to improve the system margin... I assume yr tank still new right?? try some reef booster solution... will be better...

And also probably get those continues PH monitoring system... easier to monitor and reliable too.....

Cheers and Happy Reefing.....

[marinakid]

is it better/recommend to have lower salinty? or just a safe measurement so that there is more buffer in the salinty?

[CFOh]

is it better/recommend to have lower salinty? or just a safe measurement so that there is more buffer in the salinty?

Just in general....

r u using hydrometer or refractometer?

try get one refractometer or pinpoint measurement for reference. You will find some positive offset on some brand of Hydrometer .. So, to be safe.. keep it slightly close to nominal value.. Will be less stressful to livestock when evaporation take place.... And slightly gain oxygen solubility margin.... Especially.. when tank cycling also lack of experince to foresee changes.....

1.025 is Max.. slight evaporation or measurement error will resulted out of spec.... unless Auto Top-up system or routine checking.... I know some sps keeper control sg @ 1.025... But I found this value fall in high side for fishes (not all but majority)........just my opinion...

Another point is ensure measure main tank salinity as well beside new salt mix water..... This is common mistake ppl make... Too High salinity will resulted oxegen deficiency...

Cheers and Happy Reefing....

[marinakid]

i am using a refractormeter. not using sump so dont really experience water loss and have alway been monitoring the water level.

think i try bring down the salinty. can save some money on salt mix also.

[CFOh]

i am using a refractormeter. not using sump so dont really experience water loss and have alway been monitoring the water level.

think i try bring down the salinty. can save some money on salt mix also.

Cheers.. u may consider adding sump in the future... will not regret on this..

Reference on some basic filtration:

http://www.sgreefclub.com/allabt.html#abt1

[garyjg]

Bro, I a simple word if you're seeing algae in your tank than your tanks in and unbalanced state... you said your not checking your PO4...? check it!

Don't think because your using a product it's working.

[rocker]

PO4 will cause the yuma to melt?

doubt so