Parameters..Opinions

46 gallon
salinity- 1.022
PH-7.8
Phosphate- 1.0 ppm
Nitrite- 0 ppm
Nitrate- 80 ppm
Ammonia- 0 ppm

75 gallon
Salinity- 1.019
PH- 8.0
Phosphate- .25 ppm
Nitrite- 0 ppm
Nitrate- 80 ppm
Ammonia- 0 ppm

 

AHHHH! NOT VERY GOOD AT ALL... nitrates are wayy too high; do a water change to lower them. as for salinity raise 1.019 to 1.020-1.026 (1.026 for corals, 1.023-1.025 for other inverts) Phosphate at 1 is pretty high, do you use ro/di water?

 

Diagnosis: nitrate is high, phosphate is high if you have corals.

Prescription: get some biopellets in a reactor or a fuge.

 

i'm not that experienced in reefing but i guess your nitrates are high. and you should do several water changes to bring them down. if you have corals in tanks salinity is a bit low too. 1.025 is where it should be (please somebody correct me if i'm wrong)
can you tell us more about your setup? what kind of live stock and what filtration you run?

 

1.025-1.026 is fine, but i prefer 1.026 to be on the safe side lol

 

working on the salinity now, biopellets tomorrow

 

remember they work best in a reactor, I use a two little fishes phosban reactor for them on my tank.

 

first water change, check

 

lower nitrates to at least 10-20 ppm

 

Salinity low in both tanks, you'll probably want your WC water mixed at a tad higher than your normal 1.025 if you want to bring those numbers up. Assuming You have no livestock in either you can do this fairly quickly.

PH a tad low on the 46.

Phosphates high in both-for coral keeping anyway. Run some sort of reducing media for this.

Nitrates high in both. Are these tanks just done cycling? WC's are the only quick remedy. Bio-pellets will take a month before activating and not sure how long it would take them to reduce those NO3 numbers. You'd still have to perform WC's until they are more active. Notice I'm saying waterchanges and not water change because it'll take more than a single change to get those nitrates down from 80ppm.