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-   -   ANOTHER NEW TANK.....HELP!!! (http://www.zeovit.com/forums/showthread.php?t=36929)

Merv 49 02-07-2018 03:21 PM

I've had my reef tank up and operating since July 2017 and was doing pretty good I thought until recently. I never had GHA in my tank at all until the end of December and that is when I decided I would give Zeovit a try. I took out my carbon and GFO reactors and also took out my UV Sterilizer. I followed what procedures I could find on Zeo and now my phosphates are way high .3 and GHA is all over the place. I don't know what is going on and I've definitely lost the bubble here. I installed a Skimz Remote zeovite reactor ran off my manifold with 2 liters of zeovit rocks with a flow of about 130 GPH.

My tank is I'c say 200 gallons complete
No ozone
No reactors other than Zeeovit
Skimz Skimmer Rated for 300 gallon tank
Kh 9, Alk 480, NO3 2
I have a refugium with chaeto and two marine pure 8" blocks
I have about 60 lbs of pukani in the tank
I have two Kessil AP 700 lights
My corals all look pretty good to me except one pink flowerpot. I have a mixed reef of perhaps half SPS and Half Lps and there is nothing going on with any of them. Some are growing faster than others but none are what I would call in bad shape except that flower pot coral
I have 20 fish in the tank, six tangs who don't ever touch the algae. (go figure), and an assortment of others like clowns, gobies, flame angel, coral beauty angel, sea urchins, emerald crabs, dwarf golden eels.
All the livestock is doing well and no fish are ill in any way
My main complaint is with the algae and why my phosphates are so high and don't seem to want to go down even after four 50 gallon water changes in the last months time.:wallbash::wallbash:

Leland Foley 02-07-2018 06:01 PM

How are you treating your tap water? Do you use an RO/DI? Do you have a TDS meter on the filter if so? Sounds like you might have phosphates in your make-up water.


Merv 49 02-07-2018 07:43 PM

I have a full RO DI System 0 TDS

G.Alexander 02-08-2018 03:25 AM

Hello Merv 49 :)


Please post some more details about your system:


It is always problematic to remove all PO4 absorber at once while switching to zeovit as the system does need some time before it starts to process nutrients effective.


Merv 49 02-08-2018 11:34 AM

8 Attachment(s)
Net water volume 200 gallons
Using CA CO2 reactor - No
Using PO4 reactor - NO
Using Ozone _ No
Using UV - No
Skimmer Skimz 205i Rated 220 Gal/Heavy loadAttachment 20555PO4 - .37
ALK - 8.5
NO3 - 12
Ca - 520
PH 7.95
Mg 1470
Filtration is Pukani Rock, 2 marine pure blocks 4X8, refugium
Refugium light Kessil H380 (GHA growing on my chaeto)?????
Tank light is 2 Kessil AP 700's
Mixed reef. Coral colors are fine as far as I can tell.
Started tank on July 1 2017
About 40lbs Pukani (soaked in bleach for three weeks prior to use. Algae issue only since last month.
Started Zeovit on 18 Jan. Took out reactors and UV same time
Problem is with algae. Added more snails, emerald crabs, sea urchins to help
Salinity is 1.026 Average 32.31 on Neptune
Average temp is 76.06 on Neptune
Using Reef Crystals salt
Using Salifert, API, and Hanna test kits. All are in date.
Just started dosing two part. Was using kalkwasser
Dosing K-Balance 8ml day, B-Balance 8ml day, ZEOstart3 4ml day.
Dosing Coral Vitalizer 8 drops a day.
Dosing Meerwasser Komplex 8ml a day

Merv 49 02-08-2018 12:09 PM


This is my tank in November. No algae at all is present. Now I've got algae on everything, even the chaeto in the refugium has algae growing on it. I am at a loss to explain what is going on or what changed. I'm feeding my fish less now that I ever did yet I can't get my phosphates or nitrate to come down. I've done four 50 gallon water changes in the last 30 days and still my Phosphate is at .37 using the Hanna checker.
My corals don't seem to be much affected and have continued to grow. I don't know if the rate of growth is good or bad but they are growing.
I'm using 2 L Zeovit rocks at about 150 gph through my reactor and dosing with the Zeobak, 8 drops a day since 18 Jan when I started using Zeovit

Merv 49 02-08-2018 12:51 PM

Another thought i had was using some type algae remover but don't know if this would be a good idea while using Zeovit. Any thoughts?

G.Alexander 02-09-2018 02:59 AM

First I would recommend to stop dosing B-Balance and Meerwasser complex, both might just increase the algae growth.

As you dose K-Balance also what is the actual level ?

The algae just grow because of the elevated nutrients.

I can not see it clear in the pictures but which kind of algae are those exactly ?

What have you used before ZeoVit to keep nutrients under control ?


Merv 49 02-09-2018 10:07 AM

Prior to this I used carbon and GFO reactors and UV sterilizer. I thought the algae was GHA but no so sure now. It's brown and looks like little tufts of cotton. I have no idea what the potassium level is with the K balance. I've run out of that and haven't dosed in a week at this point.

Bugger 02-09-2018 09:06 PM

You got dinoflaggelates. I would fight it with a product called vibrant and some two/three day blackout with garbage bags. Vibrant might just be all you need there is a thread somewhere on the reef2reef website where many people tried it and beat there algae problems

G.Alexander 02-10-2018 12:03 AM

My recommendation is to just dose a K+ supplement if you know the level. A concentration of ~ 380 mg is ideal. Have you removed the PO4 absorber you have used before all at once when starting ZeoVit ?

If you have access to a microscope I would recommend to take a closer look to the “algae”.

If you klick at the first picture in this thread you will see a short video how they look like, they are moving in circles:


Additional they are usually disappear while the night completely growing back very quick if lights are switched on the morning again.


Merv 49 02-10-2018 09:46 AM

I removed my GFO reactor when I put the AZEO it reactor online. I canít understand why my phosphate and nitrate levels arebít Being reduced. What could be wrong?

Bugger 02-10-2018 12:27 PM

Zeovit is slow to reduce things. It does not happen over night. Algae will still grow in a zeovit tank

G.Alexander 02-10-2018 11:46 PM

I usually recommend to switch from gfo to zeovit slowly which means reducing the gfo quantity step by step over a couple of weeks when starting with zeovit. This works well from my experience and does prevent a nutrient spike as the zeovit needs time until it starts to work effective. It is a bacterial driven system which first need to build up a working stability. The kalkwasser you have used in the past does also play a role:


Lets continue dosing as follows:

ZeoBac – 8 drops every other day
ZeoStart – 0.8 nml 2 x daily
K-Balance – as much to keep the level @ ~ 380 mg
BioMate – 16 drops every other day for a while (optional because of the PO4)
Stop dosing the other products you use until nutrients are coming down.

Run 2 liters ZeoVit with a constant water flow of 200 US gallons per hour.

Adjust you skimmer to skim wet and clean it daily to export as much as possible.

While doing the regular water changes vacuum your sand to remove the mulm from the deeper sand layers.

At the moment there is not much more you can do, it might take some time until you notice a decrease of nutrients.


Merv 49 02-11-2018 08:34 AM

Thanks. I will implement your suggestions immediately.

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