Search found 1296 matches

by TwoTankAmin
Wed Aug 05, 2020 10:35 pm
Forum: Tank Talk
Topic: About filtration
Replies: 70
Views: 11864

Re: About filtration

Your tap water contains a number of things. Some might evaporate, some may get taken into the fish, some get used by plants. Your fish produce waste that is not merely ammonia. Over time things that are needed get used up. Carbonates are a good example. Things that are not used up because they are n...
by TwoTankAmin
Wed Aug 05, 2020 3:41 pm
Forum: Speak Easy
Topic: Sexing L333
Replies: 10
Views: 206

Re: Sexing L333

I know females will cave, but that is not the same thing as claiming a cave. that is a territorial and very male thing to do. Females will shelter or hide in caves, but they will not claim one. My trick re sexing is always to buy groups. I figure if I get between 7 and 15 I will for sure have both s...
by TwoTankAmin
Tue Aug 04, 2020 3:54 pm
Forum: Speak Easy
Topic: Sexing L333
Replies: 10
Views: 206

Re: Sexing L333

Do either of them cave? I am asking because my first reaction was they are both female. Its a bit difficult to tell from the vents. Normally a male's will be clearly more pointy (almost triangular) while a female's is more rounded (blob-like). A female has to push out eggs while a male basically nee...
by TwoTankAmin
Mon Aug 03, 2020 5:15 pm
Forum: Tank Talk
Topic: About filtration
Replies: 70
Views: 11864

Re: About filtration

Here is a paper on the transport of oxygen to the roots and then releasing it in an anaerobic zone and this dramatically changes what if happening in the substrate and how it benefits the plant. I have posted this before. Petersen, Nils Risgaard‐, Jensen, Kim, (1997), Nitrification and denitrificati...
by TwoTankAmin
Fri Jul 31, 2020 8:23 pm
Forum: Tank Talk
Topic: About filtration
Replies: 70
Views: 11864

Re: About filtration

I came to all this by a strange route. About a dozen or so years back, maybe more, I got curious about things I would see an almost any fish site. One of those was that the nitrifying bacteria in tanks die off at the rate of 10% a day w/o any ammonia. Another was one must always do massive water cha...
by TwoTankAmin
Thu Jul 30, 2020 4:41 pm
Forum: Tank Talk
Topic: About filtration
Replies: 70
Views: 11864

Re: About filtration

I was pretty much taught what Darrel said about nitrate testing. I was also taught that the nitrate kit is most inaccurate in the 0 - 20 ppm range. Think about how many routes water can take through a matten set-up. Then consider the fact that the bio-film does not form uniformly inside all that foa...
by TwoTankAmin
Wed Jul 29, 2020 3:14 pm
Forum: Tank Talk
Topic: About filtration
Replies: 70
Views: 11864

Re: About filtration

No, I meant denitrification. There are a type of bacteria called facultative anaerobes (or aerobes). These are able to function using oxygen or, when oxygen is depleted, use an alternative. For some this is nitrate. When they use nitrate the end product is nitrogen gas which returns to the atmospher...
by TwoTankAmin
Sat Jul 25, 2020 7:55 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: Leopard Frog (L134) Sexing
Replies: 4
Views: 397

Re: Leopard Frog (L134) Sexing

Here is a pic of one of my males in full odontile mode. My fish are not all that seasonal so i see this appearance when they are in spawning mode as opposed to calendar timing.

Image
by TwoTankAmin
Wed Jul 22, 2020 9:51 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: The First Spawn
Replies: 8
Views: 777

Re: The First Spawn

I have almost the opposite experience. Most of my first spawns work out OK. I regularly flahlight caves, sometimes several times a day with no ill effects. But then that is why this hobby is so interesting, evrybody tends to have their own specific experiences, some good and some not so good. But to...
by TwoTankAmin
Tue Jul 07, 2020 3:24 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: Can you ID these Plecs
Replies: 4
Views: 722

Re: Can you ID these Plecs

I have two breeding groups of L236, I can offer the followings personal opinions: 1. I do not believe it will ever be formally identified. I think it is basically a natural hybrid. 2. As a result of #1, I find this fish to be highly variable in appearance. 3. The variability applies to different fis...
by TwoTankAmin
Fri Jun 19, 2020 9:15 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: Creating ideal conditions for L260
Replies: 8
Views: 1062

Re: Creating ideal conditions for L260

Both your plecos are found in the Rio Tapajós. You can use small tetras or one of the smaller rasboras such as harlequins https://www.seriouslyfish.com/species/t ... eromorpha/ or espei https://www.seriouslyfish.com/species/t ... igma-espei and they should all do fine.
by TwoTankAmin
Sat Jun 13, 2020 6:16 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: Creating ideal conditions for L260
Replies: 8
Views: 1062

Re: Creating ideal conditions for L260

Most of the gas exchange in tanks takes takes place at the surface. An airstone or sponge filter roils the surface when the bubbles reach it. They also turn over the water as noted above. Plecos need good oxygenation more than current in any case. Listen to the folks above, things are fine in the ta...
by TwoTankAmin
Tue Jun 02, 2020 5:10 pm
Forum: Taxonomy & Science News
Topic: Economic feasibility of farming Hypancistrus zebra
Replies: 7
Views: 1082

Re: Economic feasibility of farming Hypancistrus zebra

@Janne- you are a great resource on this site. Things are really bad these days in Brazil. Please take good care of yourself and your family (if they are with you).
by TwoTankAmin
Tue Jun 02, 2020 5:03 pm
Forum: Tank Talk
Topic: How low is too low for KH
Replies: 12
Views: 1281

Re: How low is too low for KH

I ran a planted tank with pressurized co for over a decade and my KH was always 3-4 dg. I worried a great deal initially about the potential for a pH crash. I did the crushed coral in my filter for a while. Because of space considerations I ran my co2 through the intake of my Eheim canister and then...
by TwoTankAmin
Sat May 30, 2020 9:28 am
Forum: Taxonomy & Science News
Topic: Economic feasibility of farming Hypancistrus zebra
Replies: 7
Views: 1082

Re: Economic feasibility of farming Hypancistrus zebra

Well for sure zebras are being farmed in numbers, I know this because I worked with somebody to bring in a few 100 tank bred zebras. They were cheap enough that I took 2 dozen at 2 inches to create a new breeding colony for myself. Zebra prices, while not cheap, have come down a bunch and I doubt th...
by TwoTankAmin
Wed May 27, 2020 1:47 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: Rineloricaria eigenmanni spawn
Replies: 31
Views: 8257

Re: Rineloricaria eigenmanni spawn

Nice work Eric. Gotta love those green eggs even without the ham. I do have one suggestion. Very early on I used those mesh baskets. I lost fish. Years later I discovered the marina hang-on traps which use an air pump to move tank water through the breeder box which is a solid plastic. There is only...
by TwoTankAmin
Sun May 17, 2020 3:00 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: Water parameter
Replies: 10
Views: 998

Re: Water parameter

To the scientists out there, what about using a deionizing unit here? If there is not an issue with the water being too hard, that would remove the nitrate. However, I do not know if it would also be removing other ions that are desirable to have.
by TwoTankAmin
Wed May 13, 2020 9:35 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: Hypancistrus ID
Replies: 8
Views: 1062

Re: Hypancistrus ID

Chaos in B&W, who could have thunk it? I thought I was bad quarantining wild fish for 3+ months. I do the same thing. I buy 10-15 new fish at a smallish size to grow out. I put them into their own tank so it starts as Q and ends up permanent :-). I sometimes forget how many should be there. I have n...
by TwoTankAmin
Mon May 11, 2020 7:30 pm
Forum: South American Catfishes (Loricariidae - Plecos et al)
Topic: L046 and wavemaker?
Replies: 6
Views: 1448

Re: L046 and wavemaker?

I never saw any reason to pay up for a wave maker. I do use powerheads or small pumps to blow current across cave mouths. I also have a number of my Hypans spawning in tanks with only air powered foam cubes and/or matten filters. No current specifically directed across cave mouths at all. Well oxyge...
by TwoTankAmin
Fri May 08, 2020 12:53 pm
Forum: Tank Talk
Topic: Stuby's fish room build
Replies: 16
Views: 1955

Re: Stuby's fish room build

That is not a fish room, it is a fish building?

Jealosy.........