Paul's Fish Tank

Bow, E. London
Volume 500 Liters
Make Red Sea Max
Model S500


I've been reef keeping for about 4 years. I have done well with my soft corals but never had any success with SPS. I have over time come to realise that you cannot rely on water changes alone to keep the chemistry in order. Now I am dosing Calk, Alk and Mag along with NoPoX to keep the nitrates down and eXcital to keep cyno at bay. I have a frag rack with 6 SPS frags and a couple of others in the tank itself. I hope to keep the frags going well and them place them in the tank when I am happy that I am keeping the water at a high enough quality to sustain them.

I have quite a few fish but my oride and joy is my Longhorn Cowfish, she is so inquisitive and spends as much time watching me as I do her.


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2 Fish

Longhorn Cowfish Lactoria cornuta
Longhorn Cowfish Lactoria cornuta

6 Corals

Elegance Coral Catalaphyllia jardinei
Frag 1
Frag 1&2
Frag 3&4
Frag 5&6
Hammer / Anchor Coral Euphyllia ancora


On average you perform a 17.6% water change every 11 days.

0% total water change in August.

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Dosing seems to be a little off, took readingsand now have switched the doser off for a day or two and will take new readings and calculate new paraemters
Using the ReefDoser iPhone app I have let my perfect parameters drift for 2 days and have input the different values as recorded today. I have set the dosing levels for Mg and Alk and will give it a

For the first time ever, I have recorded perfect results on all my test, I usually am close and have just been a spot or two out on a couple of parameters but today th
I used some putty and placed/fixed my frags in place. As soon as I'm home early enough from works I'll take some photos so I can monitor growth. I fully expect to change their location at some point
I dont believe my Calc readings, no calc is being dosed, my coral is growing, but the reading still jumps around. I wonder if other hanna checker calc users have the same problem?
I've placed my SPS frags in the tank and removed my frag rack. Today is the first proper SPS day!

I'll probably move them all tomorrow but it's a landmark for the tank :)

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