Just my opinion Koko, you should add Siamese Algae Eaters to that list. A lot like Otos (even look like them) except they eat more types of algae, even the dreaded "black brush algae," that hair that grows on plant leaves. I have a school of these in with my GF and they are great!
This fish was prominently featured in May 2004's Aquarium Fish magazine in an article on peaceful freshwater algae eaters, along with Otocinculus and Bushy Nose Plecos!
Unlike the Chinese Algae Eaters the Siamese Algae Eaters will eat lots of algae. The more common Chinese Algae Eater stops eating algae as it grows larger, becomes aggressive, and annoys other fish, so we don't recommend it for aquariums. These Siamese Algae Eaters do not seem to annoy other fish. We recommend them.
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Scientific Name. Crossocheilus siamensis.
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Here is more than you may want to know about the name of these fish. We think this fish is the true Siamese Algae Eater, and this fish's scientific name is Crossocheilus siamensis.

You can see that the fish, shown in the picture above, have horizontal stripes. Up very close you can see that these stripes have a saw-tooth edge. Also the horizontal stripe extends through the tail fin. and when this fish sits on the bottom of the aquarium, it sits on its fins, so it's belly doesn't touch. These are thought by some to be the distinguishing characteristics of C. siamensis.
Click
here to go to another web site and read more about identifying the true Siamese Algae Eater.
Comments. Whatever their scientific name is, Siamese Algae Eaters are good aquarium fish, and they'll eat lots of algae. But the regular Chinese Algae Eater is not a good aquarium fish. Chinese Algae Eaters will often attack other fish.
Both the Siamese Algae Eater and Plecostomus Catfish will constantly clean algae off the surfaces of everything in an aquarium. But they are not a substitute for cleaning your aquarium and changing some of the water.
Appropriate Home. An aquarium with an exterior power filter and a bio-wheel, and at most 1/4 inch of gravel. Siamese Algae Eaters usually don't need an aquarium heater, and they seem to well from about 68 to 80 degrees F.
We have not had problems with these fish jumping out of the large aquariums in our hatchery. But we keep them in groups of at least 100, and that probably makes them feel less like jumping. If you keep a few in a smaller aquarium, you should be sure their aquarium is completely covered.
Recommended Diet. These Siamese Algae Eaters are good algae eaters, and they will help remove algae from your aquarium.
You should supplement the natural algae growing in your aquarium with sinking algae wafers or pellets, such as the Hikari Algae Wafers that are sold in many pet stores and in nooppee. But be careful because these wafers may pollute the water, if all of the wafers aren't completely eaten or removed after a few minutes.
Siamese Algae Eaters do not seem to be interested in eating Live Black Worms, so we don't feed our Algae Eaters any Lived Black Worms.
Compatibility. Keep about one Siamese Algae Eater for each five gallons of water in your aquarium. So, for example, in a twenty-five gallon aquarium keep a group of five Siamese Algae Eaters. When kept together in a group of five or more, they'll quarrel among themselves and won't bother other types of fish.
The email sent to us said that Siamese Algae Eaters are not compatible with Red Tail Sharks and Rainbow Sharks.
Size and Life Span. Reported to grow to 6" but rarely bigger than 4" in an aquarium with a life span of several years, probably more than 5 years.
Customer Comments. The Siamese algae eaters I ordered from you last week arrived Fed-Ex on Friday alive and in good health. Within an hour, they had settled in and were busy cleaning algae off the plants in my 55 gal aquarium and have not stopped eating since.
The information I received and the service I received from you guys was top notch! Thanks! Keep up the good work.
Scott D.
Reply. Hello Scott. thank you for sending us feedback on your shipment of Siamese Algae Eaters. We are glad to know they arrived safely and are working hard in your aquarium.
Customer Comments. My Siamese Algae Eaters arrived this afternoon in great shape and are now happily swimming in my tank. The order arrived quickly and the fish were packed well. All in all a wonderful experience!
Reply. Hello and thank you for your feedback comments. We are always glad to know that the fish we shipped have arrived safely. Thank you for your compliment.
Customer Comment. I just wanted to mention that the Siamese Algae Eater eats a very different type of algae than the pleco's. They eat the "hairy" or "black" algae but will, if necessary, eat the green algae. Also they do NOT get along well with others of similar species such as the red tailed shark and the rainbow shark. They will bicker constantly with those and I would not recommend having them in the same tank as it causes both fish unnecessary stress. Other bottom feeders - loaches, catfish, pimadellas - are of no concern to the Siamese.
Also, I have found that giving them a floating plant to rest on seems to keep them much more content, as does having several. One more suggestion, while they are very temperamental as far as moving them to a new location (I usually transport them about 2 hours by car from the nearest pet shop that carries them). I have found that transporting no less than 4 of them AND placing a small plant in the bag seems to help tremendously.
Out of 4 I usually loose at least one, but never more than 2. Prior to the plant I was lucky to get one to survive more than a day or two. I have had several times that all of them have made it. These are one of my favorite fish, have much personality and live to a ripe old age of several years. I have several that are about 4 or more inches long.
Sandy
Reply. Thanks, Sandy, for your comments. We've only had this species of fish in our hatchery for a couple of months, and we are still learning about it, and we like it a lot.
Customer Comments. I am writing to thank you for great service. I ordered six SAEs about two weeks ago. You mailed me eight - thanks for the freebies. A friend of mine, the REAL fish expert, was seriously impressed that each fish was in a seperate bag.
They all arrived healthy, and within hours began cleaning my plants of brush algae. Two weeks later, my tank looks great, the algae is almost gone (I do have algae wafers, just in case), and the SAEs never slow down! They are like little lawn mowers in constant motion. Once again, thank you!
Gratefully, Suzanna.
Reply. Hello Suzanna. Thank you for your email. We are always glad to learn that some of our fish have found a good new home and are good workers too.
Customer Comments. Hi there! I would like for you to know that I have a 7.5 inch SAE. He is currently living in a 75 gallon Octogon tank and my place of business. Jack, as he is known, has been with the 'family' for almost 4 years now. I have been reading some of your feedback letters from other SAE owners and the size of the fish intrested me since Jack is so large.
I feel excited to know he is doing so well to have grown so large since apparently it is odd for an SAE to be larger than 4 Inches. Jack does a wonderful job at keeping the tank clean and has not other competition for the job, obviously. He has done well with an array of friends including platties, mollies, angels, bloodfin tetras and neon tetras, and swordtails.
More about the tank. This tank has been fitted with the rainbow lifeguard filtration system of filter, chem, and heater modules. I use both white and black carbon in the chem module.
His tank gets a regular changing of water .... 20% of course .... and a filter cleaning once a month with olternate 2 week intervales. Jack has a home of cultured rocks witch he lives under and inbetween comfortably. The Ph is never more than 7.2 and never less than 6.8.
Mark A.
N. Conway, NH
Reply. Hello Mark. Thank you for the additional information about your Siamese Algae Eater. Sounds like Jack's found a very good home in your aquarium.
Customer Comments. My order of siamese algae eaters arrived today, all in great condition, thank you for the extra one ! They are relaxing on some of my broad plant leaves and starting to nibble at the hairy algae.
Bradley D.
Atlanta GA
Reply. Hello Bradley, Thank you for your email. We are always glad to hear that our fish have arrived in good condition and are now enjoying their new home.
Customer Comments. Hi. I have a question. Do you breed the Siamese Algae Eaters you sell yourself? Your site mentions a hatchery for them. I was wondering because the ones I bought from you a few weeks ago seem to have bred.
At least, there's a tiny little SAE in there that I didn't put in the tank. :-) I'd always heard these fish didn't breed readily in fishtanks, but maybe if they are tank-raised, it's different?
Leigh
Reply. Hello Leigh. No we do not breed the SAE that we sell. Our understanding from our supplier is that they are collected wild and not bred by fish farmers.
They grow to be at least 6" long, and it is thought that they must be at least 4" long to breed. If yours bred, when they were less than 2" long, it would be very unexpected.
A long time ago we bred lots of fish in our fish hatchery, but now we do not breed any fish, except by accident - like our Mollies that won't stop!
We never thought that calling it a fish hatchery might mislead people into thinking that we still breed fish. We know of many other fish hatcheries that do not breed fish, but still call it a fish hatchery.
We also call it a fish hatchery so people will not think that we have a walk-in retail fish store, which we do not. Whew ... I guess that's enough about what we call it.
Customer Comments.I don't feel misled. I was just curious, since as you say, the blessed event was rather unexpected. The SAEs are not under 2". Some are over 3" now. (Guess I have a lot of algae.)
I did some research, and they've been bred at only 3" before. It's uncommon for the babies to survive, but I didn't have anything except SAEs and plants in the tank for quite awhile, and it's a big tank (75 gallons), so there was plenty of room for them to hide.
Leigh
Reply. Hello again. I'm glad you didn't feel misled by us calling it a fish hatchery, when we don't hatch fish in it any more.
Congratulations on your baby Siamese Algae Eater. I think this shows that conditions in your 75-gallon aquarium are really good for the SAE.
We are proud that you bought the fish from us and spawned them. I guess you've really earned the right to call your place Leigh's Fish Hatchery now.
Customer Comments. Dear Customer Service,
I am interested in buying 3 Siamese Algae Eaters, which are impossible to find at my local fish store. I have a 65 gallon densely planted tank stocked with angels, small tetras, a German blue ram pair and cory cats.
I have some questions for you regarding your fish. Do you currently have some in stock? Where do you get your fish? How long do you have them before you send them out/ how old are they? How large will they be when you send them?
One concern I have is that I will not be able to see the fish until they arrive, and I have found that this fish is often mislabeled/confused with the Flying Fox, the Chinese Algae Eater, and the False Siamese Algae Eater.
Does aquariumfish.net certify that this is the C. Siamensis – true Siamese Algae Eater – as opposed to imposters? I am encouraged by your description of the differences on your site, but would like that to be reinforced by your customer service. Finally, about ordering.
Ideally, I would like the fish to arrive the week of June 10. When should I place my order to ensure arrival during that week? Do you accept Discover cards? I noticed on your site that you have the Discover card logo, but on the secure online form, you only have forms for Visa, MC, and Am Ex.
Thank you for your reply, and for providing an easy to use site, sound advice, and the most pleasant online live aquaria sales site to navigate — if the fish are this good, you will earn another loyal customer.
Mary H.
Lafayette, Indiana
Reply. Hello Mary. We have several large aquariums in our hatchery with lots of Siamese Algae Eaters in each aquarium. So we have plenty in stock.
Our Siamese Algae Eaters are collected from the wild in Asia and shipped to us by professional fish collectors and shippers. We hold them in our aquariums, until they are fully acclimated and ready to be shipped, which is usually at least four days.
We do not know how old they are, but we think they are a few months old, and they probably have a life span of several years. Our price list says that they are about 1.5" long.
There has been confusion about the name. We know the Flying Fox, the Chinese Algae Eater, and the False Siamese Algae Eater. The SAE is not one of those fish.
We have sold a lot of SAE and never gotten a single complaint about the identity of the fish we shipped. Many buyers have emailed us back to tell us that they were very happy with their SAE. One buyer reported spawning them.