That Fish Blog – Aquarium Advice and Information

One of the first purchases most aquarists will make for a new aquarium, be it freshwater, saltwater, reef, discus, goldfish, cichlid or any other – is the gravel and substrate. It could be sand, crushed coral, Fluorite, neon pink pebbles, glass marbles or countless other materials  but it all tends to be the very first thing to go into an empty aquariums. But….why? Do you really need it? Are there alternatives? Much like the eternal home decorating debate of hardwood-versus-carpets, the battle brews among aquarists over what covers the bottom of their aquariums, a layer of substrate or nothing at all.

 

So why has substrate become such an integral part of the aquarium culture, and why are some aquarists now looking past it in favor of the bare glass or acrylic bottom of their aquariums? Much of it has to do with our understanding of the aquarium ecosystem now over what we knew years or even decades ago. Even as recently as five or ten years ago, undergravel filters were thought as indispensable for all types of aquariums and as such, gravel was thought vital to their function. We’ve come a long way with filtration technology since then, and we’ve also come a long way with understanding how the water chemistry in our aquariums functions. Alternatives and advancements have made the old undergravel systems nearly obsolete and the aquarium gravel that went on top of them is become more of an Option instead of a Requirement.

 

That said, how do you make the choice? Like so many other parts of our hobby, it comes down to personal preference and your goals. Bare-bottom tanks are becoming more common and have their benefits of substrated tank and vice versa; substrate is still a better choice than going bare for some other types of tanks. Weigh your options carefully before you choose which one is right for you. We’ll go over a head-to-head comparison in the major factors to consider to help you make your decision.

Cleaning a Fish Tank

 

An aquarium that is easy to clean and easy to care for is the dream of most aquarists. Bare-bottom tanks win this category easily. Ever wrestle with starting the siphon on a gravel vacuum, then have it clog up repeatedly with gravel when you are cleaning? With a bare-bottom tank, a gravel vacuum isn’t needed; you can just use tubing to vacuum up any waste sitting on the bottom of the tank and water pumps or powerheads can be used to circulate the water underneath and behind the rockwork more efficiently. It can be a lot easier to scrub algae off of the glass bottom and sides without having to worry about missing some at the gravel line or getting bits of sand stuck in your scrubber as well. For tanks like reef aquariums with lots of rockwork, debris and detritus can get stuck under the rocks or in the back where your vacuum cant reach as well, causing the nitrate levels and algae blooms to increase. While not as vital in, say, a freshwater community tank, nitrate and algae can spell Doom (and Headaches) in a reef tank.

 

Aesthetics & Natural Environments

 

I have to give this one to Substrate. Surprisingly, flat panes of glass or acrylics just aren’t found at the bottom of most environments in the wild. Natural environments have sand, or mud, or pebbles or some other natural material. Besides just plain looking more natural, some animals also need this substrate to live normal lives. Some fish and snails bury themselves in it or find their food in it. Timid animals need it to hide or camoflauge themselves and in some specialized ecosystems, the substrate plays a vital role in the water chemistry. Most live aquarium plants won’t survive without a substrate to root into. Having a substrate also provides many more options in changing the look of the aquarium, whether its a natural substrate or a decorative one.

 

Aquarium Water Chemistry

 

This one is an even draw; both having substrate or having a bare-bottom can negatively and positively affect the water chemistry in an aquarium. Some substrates like crushed coral can buffer the pH and hardness of the water. For a saltwater tank with a target pH around 8.0-8.4, this is a good things. For a tropical tank with a target pH around 6.0-7.0, maybe not so much. A Flouorite substrate for planted freshwater tanks can give the plants some much-needed minerals and nutrients through their roots that a bare-bottomed tank can’t give them.

 

As much as this exchange helps, any waste that can get trapped in the substrate can hurt the tank. If waste becomes trapped, it will decompose and increase nitrate, phosphates, ammonia and other negative levels which can lead to fish illness and algae blooms. As we mentioned before, this waste is much easier to get rid of in a bare-bottomed tank.

 

Microinverts, hitckhikers and other “bonus” tankmates

 

Unexpected new arrivals like bristleworms can be the ban of a saltwater aquarist’s existance, and tiny little nuisance snails or flatworms can harass a freshwater aquarists to tears. Most of these critters live or reproduce to some extent within the substrate and getting rid of the substrate to go bare-bottom will help get rid of them. Unfortunately, it will also get rid of the good critters like copepods and amphipods that can provide a natural food source to some of the pickiest fish and inverts. If you are making your choice to go bare-bottom to get rid of the nuisance critters, weigh the needs of the rest of your tank carefully to see if they can do without the good to get rid of the bad.

 

The (Bare-)Bottom Line

 

Choosing whether to add substrate to your aquarium or stick with the bare tank ultimately rests on you. Most aquariums will survive either way but one choice may be more successful than others. In our store, we have both bare-bottom tanks and tanks with substrate among our display tanks as well as the tanks we sell fish out of. Stocking these tanks is determined by the needs of the fish and the care that they need. Generally, coral-only reef tanks can go bare, planted freshwater tanks can’t; freshwater fish-only tanks might not need it but saltwater fish-only tanks (or fish-only with live rock) will do better with it. If you can’t decide which way will be more successful for you, we’d be happy to help you make the best decision for you and the success of your aquarium.

Choosing the right filter for your aquarium can be an intimidating task. We’re asked this question every day, from people setting up their first aquarium and from those hobbyists who are upgrading to a larger or different type of aquarium. Most people are looking for a quick and easy answer, which they rarely get from me.  There is no one-size-fits-all in the world of aquarium filters, and anyone who is new to aquariums, and is trying to do some research, is probably overwhelmed with all the options.  We have assembled a lot of good basic information for all the major types of aquarium filters in the article archives on thatpetplace.com. These articles are meant to help and guide you through the process of choosing a filter for your set-up by breaking down how each type works and in which applications they really shine.

The follow up question that I am often asked, is what is my favorite filter?  Again, that is not an easy question to answer with so many options, but I thought I might highlight a some of those I would recommend  from a few different filter types.

If you are looking for the most bang for your buck, especially for freshwater aquariums, it is hard to beat the good old power filter.  Also known as hang-on-the-back filters, power filters are easy to use, provide proven performance, and most are inexpensive and energy efficient.  My favorite power filters are the Marineland Emperor line.  These filters have been around for many years, and have changed very little since introduction.  There are two models of Emperor Filters available for under $50, that can handle aquariums up to 80 gallons.  The Emperor filters, if properly maintained, will provide excellent mechanical, biological and chemical filtration.  The Biowheel feature of these filters is what sets them apart from simpler power filters, they maintain biological filtration at all times, something that is lost on power filters that depend on their filter cartridges, which will lose all their bacteria when filters are changed.  These filters are great for any freshwater aquarium set-up as a standalone filter, or as part of a filtration system for saltwater aquariums.

For larger aquariums or aquariums that demand more powerful or customized filtration, the next step up are the canister filters.  My choice in this category is another filter that is time tested, and has been around for many years, the API Filstar XP line of filters (Formerly known under the Rena brand name) The Filstar canister filters are available in several sizes, up to the XP XL model that is rated for aquariums up to 265 gallons.  Modular filter baskets allow you to customize your filter media, so you can add extra biological media for heavily stocked tanks, chemical media for low nutrient levels, peat moss for amazon tanks, the possibilities are endless.  These filters are quiet, energy efficient, and easy to set up.

For the more advanced aquarist, especially the reef enthusiasts, the filtration system of choice is the Wet/Dry or Sump type of filtration system.  Ultimate flexibility, and high performance, are the key features of the these filters, and they are probably the most diverse of the filtration types, in terms of form and function.  My choice here is the relatively new Aqueon ProFlex filter system, mostly because of its 3 in 1, modular design.  With the ability to be used as a traditional Wet/Dry or Refugium, or Berlin style Sump, the filter has the ability to perform many functions as your needs change. If you want to convert your freshwater system to saltwater, your fish tank to a reef tank, or anywhere in between.  The Aqueon ProFlex can be whatever you need!

I hope that this helps guide you towards the filter you are looking for,

Until next blog,

Dave

Routine water changes are the most basic, most necessary, and most overlooked acts of tank maintenance. Most aquarists know they should do water changes, but not everyone does or even knows how to do it the right way. How much and how often are highly debated topics among aquarists no matter what kind of tanks they keep.

Why should we do water changes?

Removing water from the aquarium and replacing it with new, “clean” water removes waste and organics that are dissolved in the water. It also helps to remove any chemical treatments or medications when the treatment is complete. Dissolved organics contribute to Nitrate and Phosphate build-up that aquarists try so hard to control. These compounds can affect the health of your livestock directly and can promote algae and cyanobacteria growth, making your tank unsightly. Changing the water also helps to replenish minerals and other trace elements. This can be especially important in tanks with corals and crustaceans (crabs and shrimp, both freshwater and saltwater) that use these minerals to form their skeleton or exoskeleton. Corals and other saltwater invertebrates can use up minerals fairly quickly in a closed environment, and replacing old, depleted water with fresh saltwater adds these minerals back into the tank. Read More »

 

Footprint

This is more than just the actual size of the aquarium. Obviously, a 180 gallon tank would make a poor desktop aquarium just as a 10 gallon tank would be an inadequate room divider. Measurements aside, it is important to also consider how much weight the floor can support, particularly if you’re considering a large tank on any floor with open space beneath. In the 19^th century house I live in, I’m fairly certain that a large tank would go straight through the floor and end up in the basement. Some apartment complexes won’t even allow larger aquariums, especially on upper stories. A gallon of water weighs a little over 8 lbs, so water weight in addition to substrate and ornamentation can spell disaster on a weak floor. Saltwater aquariums are also generally going to be heavier than freshwater aquariums – the salt in the water and live rock used in most tanks increases the weight. Read More »

Hey everyone, Justin here. Working on the sales floor, I answer questions from customers each day about testing equipment. which to use, how accurate and easy the kits are, and lots of other specifics. Today I’d like to shed a little light on testing and monitoring tools, especially the electronic monitoring tools available to aquarists. There are several methods of testing the water conditions in your aquarium, including titration tests and test strips. Less frequently used are the electronic monitors. Electronic Monitors are a different way of testing your aquarium parameters quickly, easily, and accurately. Instead of using a Titration kit (liquid) or paper strips (litmus), Electronic sensors can detect specific components of your aquarium water, such as: pH, Nitrate, Calcium, Salinity, and Dissolved oxygen, in a matter of seconds. If calibrated and cared for correctly, your monitor can provide constant testing with pinpoint accuracy, which can be a real benefit, especially in complicated systems. Large systems can be huge investments in livestock alone, and pristine water conditions protect your investment. Read More »