Alexander1312
Supporting Member
I returned last night after 16 days of vacation, and I could not find any problems with this tank (there were a couple of coral casualties in the nano tank, though).
The neighbor's kid did a great job with the feeding and helping with adjusting the skimmer - an important lesson learned for next time. Also, I want to be able to adjust the skimmer remotely going forward, but the Hydros drive extension cable only arrived while I was gone so I could not this time. Since I am strongly considering swapping my Reef Octopus for a DELTEC, I better not get used to controlling the skimmer remotely.
Alkalinity - I first wanted to check alkalinity (Hanna) since this was the big unknown while I was gone. It dropped only from 8.1 dkh when I left to 7.5 dkh yesterday, which is excellent since I expected a much larger fluctuation. The Versa dosing pumps are great when they work, keeping the calibration relatively stable. Still, if I go to automated alkalinity testing (AquaWiz), I probably need to get dosing pumps that I can control remotely.
Calcium - CA dropped from 440 mg/L to 425 mg/L (Salifert). My target is around 435 mg/L since the ICP showed approximately 15 mg/L lower values than what I measured with Salifert. I assume part of the drop came from not doing two weekly water changes while I was gone - Fauna Marin Sea Salt is between 410-440 mg/L - and I do hope this additional consumption also came from additional growth
.
Phosphate - Increase (Hanna) from 0.09 mg/L before vacation to 0.48 mg/L after vacation.
Nitrate - Increase (Hanna) from 18.5 mg/L before vacation to 38.5 mg/L after vacation.
For Nitrate and Phosphate, I believe there are several aspects to consider. Missing two water changes will certainly make an impact, 1.5 minutes of dry food feeding four times a day will also impact the parameters. Additionally, the skimmer was running at a rather too-low intensity for at least a week after it started to overflow, and I did dose relatively high amounts of Tropic Marin ElimiNP - 5 ml daily - before I left but not at all while I was gone.
The neighbor's kid did a great job with the feeding and helping with adjusting the skimmer - an important lesson learned for next time. Also, I want to be able to adjust the skimmer remotely going forward, but the Hydros drive extension cable only arrived while I was gone so I could not this time. Since I am strongly considering swapping my Reef Octopus for a DELTEC, I better not get used to controlling the skimmer remotely.
Alkalinity - I first wanted to check alkalinity (Hanna) since this was the big unknown while I was gone. It dropped only from 8.1 dkh when I left to 7.5 dkh yesterday, which is excellent since I expected a much larger fluctuation. The Versa dosing pumps are great when they work, keeping the calibration relatively stable. Still, if I go to automated alkalinity testing (AquaWiz), I probably need to get dosing pumps that I can control remotely.
Calcium - CA dropped from 440 mg/L to 425 mg/L (Salifert). My target is around 435 mg/L since the ICP showed approximately 15 mg/L lower values than what I measured with Salifert. I assume part of the drop came from not doing two weekly water changes while I was gone - Fauna Marin Sea Salt is between 410-440 mg/L - and I do hope this additional consumption also came from additional growth
Phosphate - Increase (Hanna) from 0.09 mg/L before vacation to 0.48 mg/L after vacation.
Nitrate - Increase (Hanna) from 18.5 mg/L before vacation to 38.5 mg/L after vacation.
For Nitrate and Phosphate, I believe there are several aspects to consider. Missing two water changes will certainly make an impact, 1.5 minutes of dry food feeding four times a day will also impact the parameters. Additionally, the skimmer was running at a rather too-low intensity for at least a week after it started to overflow, and I did dose relatively high amounts of Tropic Marin ElimiNP - 5 ml daily - before I left but not at all while I was gone.
Last edited: