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Stability Promotes Success of Your Aquarium

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Many novice aquarists wonder what really matters in running a reef tank or what they should do to keep their aquarium healthy and visually pleasing. Beginners often wonder how to set up and maintain a beautiful acropora aquarium at the beginning of their path. However, what in our passion brings the most benefits is patience.

Experienced aquarists know what is the key to success, and it is none other than the stability of the aquarium.

In this article, I will discuss several aspects related to the stabilization of the tank and tell you what should be taken care of to maintain stable parameters. The task of mastering the parameters is not easy, but it is a challenge that you should not be discouraged from. Trust me – learning marine aquaristics is a very rewarding adventure!

Chemistry

Controlling stable chemistry in the aquarium means maintaining the right parameters. A trivial statement, and at the same time a very difficult task! In this part of the article, I will try to bring you closer to the topic of parameters. I also hope that this topic will be quickly picked up on Social Reef and my examples will be supplemented with many interesting observations of aquarists active on the platform.

Let’s start with salinity. So what is it? The table below shows which components are most abundant in sea water.

In terms of chemical properties, water in a marine aquarium is a solution, that is

a homogeneous mixture of many components. In sea water we will find: macronutrients, which are over 99.9%, and micronutrients. In order to maintain constant water parameters in terms of chemistry, we must take care of all elements, both macro and micro.

See the table below for the desired levels for macro- and micronutrients.

Element

ppm

Element

ppm

Element

ppm

Sodium NaCl

10800

Zinc Zn

0.005

Praseodymium Pr

0.00000064

Chlorine NaCl

19400

Gallium Ga

0.00003

Neodymium Nd

0.0000028

Magnesium Mg

1290

Germanium Ge

0.00006

Samarium Sm

0.00000045

Sulfur S

904

Arsenic As

0.0026

Europium Eu

0.0000013

Potassium K

392

Selenium Se

0.0009

Gadolinium Gd

0.0000007

Calcium Ca

411

Krypton Kr

0.00021

Terbium Tb

0.00000014

Bromine Br

67.3

Rubidium Rb

0.120

Dysprosium Dy

0.00000091

Helium He

0.0000072

Strontium Sr

8.1

Holmium Ho

0.00000022

Lithium Li

0.170

Yttrium Y

0.000013

Erbium Er

0.00000087

Beryllium Be

0.0000006

Zirconium Zr

0.000026

Thulium Tm

0.00000017

Boron B

4.450

Niobium Nb

0.000015

Ytterbium Yb

0.00000082

Carbon C

28.0

Molybdenum Mo

0.01

Lutetium Lu

0.00000015

Nitrogen ion

15.5

Ruthenium Ru

0.0000007

Hafnium Hf

<0.000008

Fluorine F

13

Rhodium Rh

.

Tantalum Ta

<0.0000025

Neon Ne

0.00012

Palladium Pd

.

Tungsten W

<0.000001

Aluminium Al

0.001

Argentum Ag

0.00028

Rhenium Re

0.0000084

Silicon Si

2.9

Cadmium Cd

0.00011

Osmium Os

.

Phosphorus P

0.088

Indium In

.

Iridium Ir

.

Argon Ar

0.450

Stannum (tin) Sn

0.00081

Platinum Pt

.

Scandium Sc

<0.000004

Antimony Sb

0.00033

Aurum (gold) Au

0.000011

Titanium Ti

0.001

Tellurium Te

.

Mercury Hg

0.00015

Vanadium V

0.0019

Iodine I

0.064

Thallium Tl

.

Chromium Cr

0.0002

Xenon Xe

0.000047

Lead Pb

0.00003

Manganese Mn

0.0004

Cesium Cs

0.0003

Bismuth Bi

0.00002

Ferrum (Iron) Fe

0.0034

Barium Ba

0.021

Thorium Th

0.0000004

Cobalt Co

0.00039

Lanthanum La

0.0000029

Uranium U

0.0033

Nickel Ni

0.0066

Cerium Ce

0.0000012

Plutonium Pu

.

Copper Cu

0.0009

    

How to ensure the stability of chemical elements in seawater?

There are several methods. The simplest of them is to do regular water changes. A 10% water change once a week will be sufficient for the proper maintenance of easy corals.

A more advanced method is the dosing of components. In this case, we measure 3 basic parameters: KH, Ca, Mg. The components will usually be available in 3 separate bottles, which, in addition to the aforementioned macronutrients, will also contain micronutrients in the right proportions. Corals and other animals should consume macro and micronutrients in equal proportions. For example: if we add the Ca component, then apart from calcium we also add other elements that are in the composition of this liquid. The dose is adjusted to the consumption, which we determine by measurements.

The advanced method is the measurement of basic parameters such as KH, Ca, Mg and performing cyclic ICP-OES measurements. In this case, we dose the components as above, and after the ICP-OES test, we precisely supplement other elements. So if the test shows that we have, for example, too little zinc, we add additional zinc as recommended.

The method of dosing is free. The most important thing is that the chemical environment is stable.

Additional elements that need to be taken care of while keeping the salinity at a constant level (constant salinity parameters in the aquarium):

Good quality RO water. We use it as a base for water changes and add it to replenish the evaporated water to the aquarium. Tap water contains minerals, if we do not purify it, we will introduce additional elements in an uncontrolled way.

We make sure that no dirt, such as rusting metal parts or other unwanted elements, gets into the water. If we do not manage it, a lot of pollutants will get into the aquarium in an uncontrolled way, and our elements, such as iron, nickel, tin, zinc, etc., will harm the corals.

If we do water changes, the salt must be checked – we must be sure of its composition. We don’t want to make salt substitutions that will turn out harmful instead of helping us. If its composition is doubtful, it can raise some element high, and this may (but does not have to) harm our corals.

Biology

Another important issue in marine aquaristics is maintaining a stable level of biology. In marine aquaristics, in great simplification, biology is expressed by three parameters: NO3, PO4 and water pH. Based on these parameters, we know what is happening in the tank. Of course, there are also many more parameters that determine the level of biology in an aquarium, but this is a topic for a separate article.

When building a marine aquarium, we develop a filtration method to control NO3 and PO4. If we started the aquarium well – on high-quality rock and the tank is not overstocked – then we can basically assume that NO3 and PO4 should maintain themselves at the appropriate level. On ReefPedia you will find several separate articles on filtration and maintenance of NO3 and PO4.

Generally speaking, the point is to keep these parameters constant. So choose the type of filtration and keep the biology on the right level.

The subject of pH is described by me on ReefPedia in the simplest possible way. From the available articles you will learn, among other matters, why your pH is too low and read about ways to raise it. Make sure to read the article on ReefPedia about the role of pH in a marine aquarium, and you will understand why a constant pH is crucial.

Temperature

Maintaining a constant temperature seems simple – buy a heater with a thermostat and the matter is settled. In my experience with marine aquaristics, I have seen many catastrophes related to temperature. It was the heater that broke down, and it was too hot in the room in the summer and the animals overheated. Therefore, trust me – it’s worth spending some time to get to know the topic of temperature better.

Our task is to maintain a constant temperature. It’s worth getting a temperature monitoring device with alarms, for example: one of our production. For the summer period, it makes sense to invest in AC or a water conditioner (or at least fans) in the room where the tank is kept.

The temperature range that‘s acceptable in a marine aquarium is 23-28 ℃ / 75.2 – 82.4 ℉.

Lighting

A constant level of lighting is not only a repetitive cycle of sunrises and sunsets – it is also a constant quality of light.

Gear

In this part I’d like to mention our devices that support the aquarium, such as circulation pumps, skimmers, circulators, etc. They work and we assume that they’ll keep working, but sometimes it is worth securing yourself with an additional piece of gear or checking the availability in a friendly marine aquarium shop.

Summary

I believe it’s necessary to discuss this topic. I invite you to the Reef Pedia Facebook group, where we talk about the stability of parameters and more! Let us know what else you think we need to take care of. What’s more, you should do to have a beautiful, stable aquarium.

About the author

Picture of Marek Protasewicz

Marek Protasewicz

Reefkeeping has been my passion for over 10 years now. I love learning. The hobby has taught me many valuable lessons, patience being the best example. Combining work and passion is my path. I run Crazy Coral, a marine aquarium shop, for a number of years. Building this business from the scratch I learnt from my own mistakes at a heavy cost.
Later I managed a project aimed at development of methods for quick growth of Corals in non-natural conditions. The project was carried out by Get Sales, Poland. Presently, I am responsible for distribution strategy at Reef Factory, of which I am a co-founder. The company produces smart devices for marine aquaristics. The last projects I have been involved in are Social Reef and ReefPedia.

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