Search found 2690 matches

by Bas Pels
Tue Mar 31, 2020 7:43 am
Forum: Tank Talk
Topic: About filtration
Replies: 29
Views: 4189

Re: About filtration

if the tank gets too much sun AND there is enough plantfood in the water - this water might get green. Resulting in 0 visibility.

You better keep the sun out of the tank.

Further it is warmer there, but that only implies other species kept.
by Bas Pels
Sat Mar 28, 2020 3:52 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: How many ottos for a 55Gal tank
Replies: 11
Views: 469

Re: How many ottos for a 55Gal tank

The problem with Otocinclus is, they eat constantly. Until collected, and then they don't eat for a long, long while. Most often until they arrive in the aquarium of their buyer. Quite often, they develop a lethal condition from this starvaton. In other words, bought Otocinclus need to be fed as soo...
by Bas Pels
Fri Mar 27, 2020 10:35 am
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: How many ottos for a 55Gal tank
Replies: 11
Views: 469

Re: How many ottos for a 55Gal tank

Hi, Right now very few it has been reticulary difficult for me to keep plants alive in this tank. I have tried elodeas, anubias, java ferns, java moss. The only one that last for some time is the java moss. I was thinking of adding some duckweed. I only keep the lights on 6 hours but maybe there's ...
by Bas Pels
Thu Mar 26, 2020 1:36 pm
Forum: South American Catfishes (Callichthyidae - Corys et al)
Topic: Corys Hugging Surface
Replies: 6
Views: 281

Re: Corys Hugging Surface

The C paleatus are the only fish in your tank preferring cold water, and colder water can contain more oxygen than warmerwater. Further, a fish in warm water will need more oxygen than in cold water. That is, your C paleatus could very well be the most sensitive to low oxygen levels - even though Co...
by Bas Pels
Thu Mar 26, 2020 1:32 pm
Forum: South American Catfishes (Callichthyidae - Corys et al)
Topic: Soft water
Replies: 2
Views: 162

Re: Soft water

I can only tell about Dutch shops: some treat their water in case the receive wild cought fishes, but even these will only sell from tap water tanks. A fish shop uses a lot of water (high denisty implies lots of waterchanges, mostly done automatically) and any other water than tap water would be ext...
by Bas Pels
Thu Mar 26, 2020 8:35 am
Forum: South American Catfishes (Callichthyidae - Corys et al)
Topic: Top Ten Corydoras
Replies: 6
Views: 276

Re: Top Ten Corydoras

I would assume C panda is in the top 10 in the Netherlands. You see them everywhere.

Further the dwarfs, C pygmaeus, are also very common here
by Bas Pels
Thu Mar 26, 2020 7:36 am
Forum: Tank Talk
Topic: Fish spawning with high nitrates?
Replies: 14
Views: 624

Re: Fish spawning with high nitrates?

Regardless how it is made, NO3- is NO3-. There is no way to find out how the molecule was made. However, if nitrates have been build up slowly, there could be a possibility that an nitrate-eater would be interested in the high nitrates. In case of a high nitrate condition due to adding KNO3, this is...
by Bas Pels
Tue Mar 24, 2020 6:35 pm
Forum: Tank Talk
Topic: Fish spawning with high nitrates?
Replies: 14
Views: 624

Re: Fish spawning with high nitrates?

The fish mentioned, Oncorhynchus mykiss, Oncorhynchus tshawytscha, Salmo clarki, are all from the salmon family. When a student, I did some toxicity work on heavy metals (copper, cadmium) on fish (Oreochromis mossambicus). From the literature I remember (30 years ago) salmons are very much more sens...
by Bas Pels
Mon Mar 23, 2020 2:15 pm
Forum: South American Catfishes (Callichthyidae - Corys et al)
Topic: How many?
Replies: 6
Views: 299

Re: How many?

In that case 19. Footprint is what counts, not liters.
by Bas Pels
Mon Mar 23, 2020 12:29 pm
Forum: South American Catfishes (Callichthyidae - Corys et al)
Topic: How many?
Replies: 6
Views: 299

Re: How many?

Most likely a 40 * 40 * 40 cm tank. With a 0,16 square meters footprint.

I have no clue what a "smudge spot Cory" is, but I would assume you could keep some 20 4-5 cm Corydoras in such a tank, if these are the only fishes
by Bas Pels
Mon Mar 23, 2020 7:41 am
Forum: Tank Talk
Topic: Fish spawning with high nitrates?
Replies: 14
Views: 624

Re: Fish spawning with high nitrates?

As Darrel stated, on paper the nitrates should not be able to reach such a level.

The fish are doing great. That allows one, I´d say, to blame te measurement.

Nitrate tests really expire after a while. So even this, rather convenient, conclusion is defendable.

I would continue what you are doing.
by Bas Pels
Sun Mar 22, 2020 1:58 pm
Forum: Other Catfishes
Topic: Ameiurus melas stop eating
Replies: 29
Views: 1922

Re: Ameiurus melas stop eating

The cubic inch Victor mentioned is 15,625 cubic centimeter. Assuming a fish weighing the same as the water it replaces (fish generally weigh a little bit more, but not much) Victor advises 4 grams of fisdh a liter. The oscas would weigh 50 grams each, the carp 700. That is, there was room for some 8...
by Bas Pels
Fri Mar 20, 2020 6:48 pm
Forum: South American Catfishes (Everything else)
Topic: RTC and TSN for Aquaponics?
Replies: 8
Views: 813

Re: RTC and TSN for Aquaponics?

Not being well educated into English names for fish, but I would assume "walking catfish" is Clarias. What is the Sharptooth catfish? It could be the Souyth African name for the same fish.
by Bas Pels
Thu Mar 19, 2020 9:24 am
Forum: South American Catfishes (Callichthyidae - Corys et al)
Topic: Corydoras green/orange laser - infertile eggs
Replies: 8
Views: 1159

Re: Corydoras green/orange laser - infertile eggs

As I don't know much about Corydoras, and dislike looking at You Tube, I did not follow the link.

I did read, however, what you wrote.
by Bas Pels
Thu Mar 19, 2020 7:36 am
Forum: Speak Easy
Topic: Monster Catfish Book?
Replies: 7
Views: 604

Re: Monster Catfish Book?

I wonder wheter there are any books, after all, a book needs to be sold, and there are not thwat many people wanting a big - 30 cm, 1 foot, fish or larger. Now, what will a fish need to thrive? Room, food an perfect water. The latter will be the same whether the fis is 1 cm or 30, and therefore I wo...
by Bas Pels
Fri Mar 13, 2020 3:13 pm
Forum: African Catfishes
Topic: 100 gallon multipunctatus tank
Replies: 21
Views: 5513

Re: 100 gallon multipunctatus tank

You keep Cardinals in a tank for Synodontiws multipunctatus? Cardinals come from the Rio Negro, pH around 4. The can be kept at pH 7, but Tanganjica fish like a high pH 8.5 or 9. Far too high for cardinals. Or the other tetra´s shown Further, the wood in the tank might not be ideal. Wood lowers the ...
by Bas Pels
Fri Mar 13, 2020 7:39 am
Forum: South American Catfishes (Callichthyidae - Corys et al)
Topic: Are Panda & Paleatus good tank mates for Pygmy Corys?
Replies: 3
Views: 1054

Re: Are Panda & Paleatus good tank mates for Pygmy Corys?

In the long run, C paleatus would want it colder than the other 2 species.
by Bas Pels
Fri Mar 13, 2020 7:38 am
Forum: Tank Talk
Topic: Using potassium permangenate to kill parasites
Replies: 20
Views: 1949

Re: Using pertassium permangenate to kill parasites

I never heard of pertassium permangenate

Are you certain it was not potassium permangenate?
by Bas Pels
Thu Mar 12, 2020 11:12 am
Forum: South American Catfishes (Everything else)
Topic: What is the difference between tatia and glanidium?
Replies: 6
Views: 1335

Re: What is the difference between tatia and glanidium?

I´m afraid this is a hard question, there is hardly any information regarding Glanidium in the Cat e log

Obviously, there mst be SOME reason this genus was erected, but I can´t tell you
by Bas Pels
Thu Mar 05, 2020 8:27 pm
Forum: Speak Easy
Topic: Help re how submerged aquatic plants uptake CO2
Replies: 11
Views: 2733

Re: Help re how submerged aquatic plants uptake CO2

I read It's just that as far as i can tell CO2 is not acidic until it dissolves in water. And I wonder, what is it that makes HCl acidic? It is that it reacts with water, resulting in H+ and Cl-, making the water acidic. That is, in most common practises, acidic Always means in relation to water. I ...