Too bad I can't read the whole article for lack of a password. The thing is - I wonder what was done with, to the goldfish. Now I am not against feeding life fish - many other people are, but I'm not - but using a goldfish to be electrocuted, either more than once, or to let it life later, would be ...

I think you are right asking this question. After all, small fish don't breed, yet, but large fish do. If one would take out 50 % of the fry from one season, the other half will have a greater change of growing out to maturity - there is more food, predators will find other prey. Therefore, taking o...

Hardness, just as conductivity (your TDS measurement is a condictivity measurement) are all linear scales. That is, if 2 units are around, the reading will be twice as high. So yes, 2 parts RO and 1 part tapwater of 18 GH will make 6 GH in total. pH is another matter. Firstly the scale is logarithmi...

I would never use CO2. Because it is the stuff our fish breath out, putting more of it into the water will make it harder for the fish to get rid of their waste product, resulting in more acidic blood. Now if one needs a low pH, there are other, better solutions. lowering the pH with peat, old leave...

I'm surprized your rainwater is pH 7.0. As we all know, CO2 is one of the gasses in the air, and this one does dissolve rather good. CO2 is also known als carbonacid, and it does make your water tart. Still your rainwater is pH = 7.0. I would assume something, perhaps a concrete roof dissolves a bit...

During the maturation process, a series of hormonal events result in the development of some secondary sexual traits in the brain of male specimens, like faster growth rate of brain areas linked to motor control, olfactory and visual responses. To me, this would suggest that adult males will be look...

I would be very carefull with dipping tillandsia in fish water. Remember, in South America the thrive on rainwater only. Good, this rainwater has been spiked with Saharasand, and is therefore slightly more ferilised than one would expect, but all my tanks contain far, far too much nitrate and phosph...

Where many cichlids are rather insensitive towards crossbreeding, this species Oreochromis mossambicus produces with the related O niloticus infertile offspring. Now this is a huge advantage, fertile Oreochromis start breeding at 6 cm or smaller, and infertile ones just grow, untill cought and eaten...

The correct English pronouncation is not always predictable from the spelling, but I never heard the same spelling has different pronouncations depending on the meaning. You put me in uncharted waters, Victor.

I would expect so, as the a in agamous will have the same meaning as the a in atypical. That is, anti. Or just `not´.

Woud you pronounce the mous part similar to mouse . the rodent?

If I read `Ovophilic, agamous` I would assume both words to refer to reproductive behaviour. Now it does complicate that agamous also has a meaning in cell biology, but here it must refer to pair bonding, as Siluris wrote. Apart from that, fish base writes about normal situations in nature. And any ...

Apart from the personal savety issue - I heard in Sweden people are supposed to unplug heater before getting their hands wet, which would solve this problem nicely - it is always possible to calculate the needed capacity of a heater, and use two heater of half this value. A square meter will loose 6...

Can't say I see any white spot in this saddle.

The edges are white, but that looks like an artifact to me.

fishguy1978 wrote: ↑Mon Dec 14, 2020 10:47 pm

Bas Pels wrote: ↑Mon Dec 14, 2020 7:53 pm Reme3nber, take 3 days to get there

How detrimental would it be if I added all 40 grams same day?

Can't say, I never tried it.

While not catfish, let alone Corydoras, whgen I was raising cichlids, I always used docorated tanks, with plants and a sand substrate. Obviously, such a tank cannot be kept sterile. But then, fish raised in sterile conditions will not have a very well developed immune system. That is, I don't think ...

Reme3nber, take 3 days to get there

I've had the related Platydoras costatus for 27 years, and every now and then I cured with salt. Never more than 3 g/l, bringing this up with 1 g/l per day

I trust you can count with metrics.

After emptying my 4 meter tank, to get rid of a plague of Amatitlania nigrofasciata, the convict cichlid, but this was a rather nice looking variety from Guatemala, bangfull of corour, but 50 or more was way too much, I put Neetroplus nematopus in the tank, resultikng in another plaque. Both species...

Narelle is right in pointing out that plants need various inputs in order to grow, and quite often light is the limiting factor. However, CO2, phosphates and nitrates are wasteproducts from animals, and fish prefer to have low levels of these. Fish generally are no fans of excessive lighting, and th...

While Vallisneria likes harder water, Sagittaria subulata looks a lot like them, prefers soft water and might be precisely what you are looking for. Frankly, they are hard to tell apart. This tapered shape of the leaves under water is common in Sagittaria. Sagittaria means arrow, but this refers to ...