In my tank, I have 5 clown loaches. Originally I got one to rid my tank of a snail infestation. I soon began to realise thought that the loach was spending about 95% of his day hiding in the corner of the tank under a rock. He could come out only for a minute or so to feed and then head straight back to his corner.
After jumping on google and finding out about the fish, I soon discovered the problem. The clown loach is a very active and sociable fish, and should be kept in a small group. I would recommend no less than 3, but probably look at 4 or even 5.
However before racing off to your local fish supplier to grab a few, there are a few things you should know. They can grow as big as 40cm, however in the aquarium environment most only get to around 10 – 15cm. With this in mind, you need to make sure you have a fairly large tank to accommodate the future growth of the fish. I would be recommending you have a 200Ltr tank at a minimum for 3 fish. As most of you would know, I only have a 180 Ltr tank, and I have plans to get a larger tank a the fish grow. If you try and keep too many fish, or too big a fish, in your tank then you are going to run into problems.
Firstly, you will start having to carry out a lot more maintenance on your tank just to keep it clean and healthy. Secondly it just isn’t fair keeping your fish in such cramped conditions. Liken it to you having to live your whole life locked inside your house. never being allowed outside, and just for good measure, there is 2 adults and 4 kids in your humble 4 bedroom house.
As you can imagine, you would very quickly tire of those conditions and as a result of the stress of the situation, your health (and probably your sanity) would suffer greatly. It is the same for your fish.
The clown loach has spines located under their eyes which are used to defend itself from predators, but also uses these to catch its prey. If you try to catch the loach in a net, then there is a good chance that it will deploy these spines, and get caught up. This could not only cause injury to the fish, but also to you, the handler. If you do get the fish caught in a net, I suggest just resting the net in the tank and gently helping to untwist the fish. Try not to handle the fish, as it will remain agitated. Hopefully it will get out of the net on its own if you leave it alone for a while.
I have noticed too that my clown loaches spend alot of time checking out my gouramis and, at times will swim and play with them. It is fun to watch and makes for a nice aquarium setting.
Another thing that I have noticed is that when they are really active, and sometimes during feeding time, they make a clicking type of sound.
It is not uncommon for me to come out and find that one (or more) of the loaches are lying on its side on the bottom of the tank, not moving. In fact the first couple of times I saw it, I thought I had a dead fish!!! It was only when I went to pick it up of the bottom that it swam away as normal. I have also seen them swim on their sides and even upside down.
I have live plants in my tank, and I have noticed that the clown loaches love to play in them. In fact they like to pull them out all the time. There wouldn’t be a week go by that I don’t have to replant one or more plants. I also have a couple of rocks, which I have set up to form a small cave for the fish to hide under.
I have come to know that they do not really like brightly lit tanks. If you have a light in your tank, then be sure to provide some shady hiding areas for them. Likewise if your tank is near a window, then be sure that there is ample places for them to hid out of the light.
The clown loach is native to Sumatra and Borneo, in Indonesia. It lives in the rivers and streams. As such having adequate water movement in your tank is a good idea, for the loach to swim against the current. This can be achieved by having a powerhead attached to your filter system, or by setting up your filter output to come out under the water so as to create the desired current. You will see your fish dancing in the current.
Because they come from rivers and streams, they are used to having other fish and plants in their home. By having this in your tank you help them to be more relaxed, or less stressed. This will result in them just spending their whole time hiding in a corner or under a rock. The same as my lone loach did when I first got it. It is normal for your fish to be a little dormant when you first get them. Until they get used to their new tank and environment. After a week or so you should see them start to warm to their new home and start to be a little more active. Of course you can always coax them out with a bit of food. If there is one thing my loaches love, it is food. They go absolutely ape on zucchini, and I also give them shrimp pellets from the pet store. I have even seen one person who gives them cooked and peeled shrimp. You can also use live foods, like small snails, worms and brine shrimp. Frozen bloodworm and brine shrimp are also a good food source, but be sure to bring the food back to aquarium temperature before adding it to your tank.
As always you need to ensure you have adequate filtration in your tank, as these fish are native to the flowing, clear streams.
Clown loaches are particularly susceptible to ich (Ichthyophthirius) and due to their lack of scales you need to be careful when medicating your tank. You need to use a reduced concentration of the medication. This will mean a reduction in the effectiveness of your treatment, and may mean you have to treat over a longer period of time. It is vitally important that you use a quarantine tank when adding new fish to your tank.
I add Stress Zyme and Stress Coat to my tanks every time I perform a partial water change. This helps to keep the fish happy and healthy.
You cannot have any aggressive fish in your tank if you want to have Clown Loaches. They will become too stressed and spend their time in hiding. Eventually you will find that they become unhealthy and may even die due to the stress.
Water parameters: pH 6.5 – 7.0, Hardness: aim for softer water, Maximum DH: 12
Temperature: 25-30°C (78ºF to 83ºF)