Parameters ok?

[Ab129]

Hello all,
Things have been going smoothly enough with my tank with a few small exceptions, those being some long hair algae on my rocks, some green algae on my sand and one of my lps hasn't been opening up fully the last couple of weeks.
I've been pulling the long hair by hand.
Here are my parameters
Temp 78-79
Salinity 1.026
Nitrates 20
KH/Alk 8.3
Calcium 395
Mag 1230
pH 8.4
I do %15 water changes religiously every week.
All the numbers seem to be not perfect but in the right range.
Those nitrates have not budged from 20 in months.

Is there something I am missing or misinterpreting?

 

[ryeguyy84]

What about phosphates?

Sent from my SM-G950U using Tapatalk

 

[garygonzales]

yep check for that..also what kind of water are you using...rodi.??

 

[Ab129]

I tested phosphate with salifert kit several times and the color of the water seems to remain unchanged or clear so I think phosphate is sufficiently low.
I don't like this test because there is such a barely discernible difference between the lower 3 or 4 ranges and it just seems like I add the chemicals to the sample and nothing happens.

 

[Ab129]

And yes, rodi 0 tds

 

[lapin]

Looks ok to me. You might think about some more snails or something to help keep the hair cut

 

[billdogg]

If you have a problem with hair algae then, by default, you have an issue with both Nitrates and Phosphates. Your readings are on the low side only because the algae is there to use them up. Figure out the source (often over feeding/excess fish waste), take care of that, and the algae will disappear pretty much on its own.

I wouldn't waste the time or $$$ on checking your pH. Alkalinity is a much more important indicator of just where your tank sits. The pH can vary widely depending on the amount of fresh air, the number of people in the room, how well insulated (sealed up) your house is, etc. I have not checked mine in 20+ years.

 

[Ab129]

I considered the possibility that I may be over feeding.
I have 8 fish
2 clowns
2 wrasses
Valentni puffer
Royal gramma
Yellow tang
Blue throat Trigger
The tang and trigger are maybe 6 months old.
I feed either fish frenzy or the frozen brine shrimp that come in the tin foil cubes. If it's shrimp day they get one cube for the tank and if it's fish frenzy I cut off a piece that's about 3/4 of an inch square and chop that up and that's it
Only feed once a day.
Is that too much?