Beto EE

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Freshwater aquarium fish species experiences. 

First and most important is that I do 30% water changes weekly, and the tap water here is around 7.2 Ph. And still I found during my experience that some fish are stronger than others and get not sick as some others. But that is relative too. Because it depends if a fish was previously with a weak inmune system where you got it, or if it was a weak specimen, etc.

Lots of guppies had been raised here in the aquarium. Long ago I read in a saltwater fishing book that fish are like humans, some stronger than others. So you may get confused if the first fish from certain specie died prematurely, but after that the next you got all lived for years! But guppies in my experience were the weakest fish of all livebearers I had. They died and died.

Still here are the fish so far I found stronger!

Betta. They like small places. I have one in a plastic marina breeder modified as a permanent house for her. The water flows constantly, and she had been living eight months there. These fish are tough. As long as the water is clear and in good conditions, the fish will be happy. In their natural environments, they had been found in spits of water waiting for more rain to come to their rescue.

Angel fish. They never gave me any problems, and I got them when they were tiny specs.

Silver dollars. A school of five I got when they were very small. Their grow rate is fast!. They can be mixed with cichlids and other fish. But don’t get them if you have a planted aquarium. They are vegetarian piranhas! No plant will survive with them around. And I mean none!

Cyprinids are a group of fish very strong. In my opinion some of the strongest small and medium size community aquaria fish. Rasboras, barbs, minnows are cyprinids too.

Gold barbs. I have four of them, I had five but one died stucked in a sponge filter against the aquarium glass wall together with a small electric blue acara. I learned the lesson that sponge filters should be better used for fry only, or if you have them in bigger aquarium keep it away from the sides, front and back of the aquarium, or some fish may get stuck and die there. No matter what everybody say, I don’t keep barbs with aquarium plants. When barbs are small or young they may not eat the plants, but when they mature you’ll start questioning why your plants are getting holes everywhere.

Espei rasboras. Many rasbora species are cheap, and that’s good because they make excellent choices for planted aquariums, and won’t eat plants at all

Tetras. There are many tetras in the hobby, some are excellent for planted aquariums like the ember, blue neons, cardinals, pristella, black phantom, black neons, glowlights(all of this are my favorites for the planted aquarium).

There are bigger tetras too, that are more aggressive. They do well with bigger fish, but they eat plants. Diamonds, Colombian, Buenos Aires, Congo, lemon, etc..

Diamond Tetra
Diamond Tetra

Betta Fish

Cocoa Turquie
Cocoa Turquie the veil tail betta.

Bettas can’t live with anybody but alone. Not in vain is the burmese fighting fish. There are some beautiful fin shapes with higher prices. The crown tail is one, but there are some others. You can find some expensive ones for $15 to $25 usa dollars. In a small 5 gallon tank with a sponge air filter one fish can live his life like a sultan.

Freshwater Angelfish

Zebra and Black Veiltail Angelfish.

And I mean Scalare and not Altum species. I got a gold and zebra angelfish when they were babies about six months ago, so I think they have to be around 9 months old. I have seen bigger angelfish, but I read somewhere that once they reach close to the one year age, they still grow, but slowly. This specie is elegant, and is a cichlid! They require a tall tank because of their shape. While african and other south american cichlids need more horizontal space to swim because of its elongated shape, angelfish move more in a vertical manner. I believe a 40 gallon tank(3 ft long) will be ideal for them, or a bowfront close to 30 gallons too.

Bristlenose Pleco

Albino Bristlenose Pleco
Albino Bristlenose Pleco sucking algae from honeycomb rock.

I ended up buying four of them in total, and they were one and a half inch at most). First one regular color and one albino. Then they died in less than a week. The substrate in the 30 gallon aquarium where they were had white rock substrate(but not polished small pebbles). I noticed them when dying having little blood under their bellies. So the next two I got were again one regular, and one albino.

These bristlenose plecos went into the 60 gallon tank with polished pebble. Happy there they went and couple of days latter the regular color pleco showed up dead. I said to myself that if the last pleco died I would not get any more plecos. But the only bristlenose plecostomus survivor(and albino by the way)is growing and seems to be doing just fine.

Plecos need either sand substrate, or polished pebble so they don’t cut their soft belly.

Tetras Fish Experience


Diamond Tetra
Diamond Tetra

Pristella Tetra. Shy small tetra who don’t bother guppies. A very hardy fish and is better to have it in a group of six if they are the only tetras in a 30 to 10 gallon fish tank in my opinion . I never had a problem with them as long as I did water changes weekly.

Glowlight Tetra. Smaller than pristella and thin bullet shape. Had no problems with them neither. They too have to be in a group of six at least

Black Neon Tetra. I like the looks of them. Appearance is thicker bullet shape than glowlights. No issues with them neither.

Diamond Tetra. I have six of them. None of them died. I have them in a 60 gallon fish tank with angelfish and plecos.

Black Phantom Tetra. I got 2 females and 1 male. Two died in 48 hours, and I don’t know still why.

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