Search results

What is the difference? Very simple: crushed coral is mostly Calcium Carbonate, plus some other minerals including a small amount of magnesium. Dolomite is Calcium magnesium carbonate, i.e. equal amounts of Ca and Mg.

It makes sense to try to replicate the conditions of Lake Turkana in order to maximize survival of fry. However my calculations indicate that 3lbs in 100 g leads to a salinity of 3.5 ppt, which is more than you need for Lake Turkana, which according to what I have read, maintains a salinity of...

The salinity of Lake Turkana is 2.5 ppt, so you would need 2.5 g of marine salt to each liter of water if you wanted to replicate their natural environment. Having said that, I don't know if it is necessary to replicate their natural environment. They may be OK the typical hard freshwater of...

Here is an example of a very colorful wild Poecilia sphenops kept in brackish tank

There are numerous other wild molly types that are also very attractive. some of them are very colorful. Poecilia caucana, Poecilia salvatoris, and the entire sphenops complex.

Why not just use a sponge filter? In the case of reverse flow, it is just a small sponge to trap detritus. You would need a larger sponge for adequate biofiltration. Either way, the sponge and the substrate would be additive.

You are probably right. Another theoretical reason for reverse flow is to prevent the 'sludge' from accumulating below the plate. However, running conventional flow now for a couple years now, I don't see any of that sludge below my filter plate. I can post a picture when I get a chance.

I generally use conventional flow for UG. However they can theoretically get clogged with accumulation of debris and packing of substrate after prolonged use, so you can intermittently reverse the flow to loosen up the substrate bed.

i Heris a reveres flow set up. The sponge prevents particulate matter from entering. The powehead pushes the water into the tubing connected to PVC fittings. In this case the uplift tube was replaced with a PVC pipe.

There is a very simple way to do it. 1. Attach a powerhead to a sponge filter 2. Chose a lift tube to receive the output from the powerhead and close off the other lift tubes 3. Trial and error with different sizes of PVC connectors and vinyl tubing to connect powerhead to lift tube I'll...

If you are serious about keeping plants in brackish, I would keep the salinity much lower, and I suggest you look at these links from a 2017 post #24 And more info on some more common FW plants and their salt tolerance: http://web.pdx.edu/~sytsmam/papers/parrotfeathersalinitytolerance.pdf...

https://www.petshrimp.com/beware-of-so-called-brackish-water-plants/

Your link to the list of plants didn't work. I agree that salinity has to be kept at the low end to keep aquatic plants. Some of the ones that have been shown tolerate salt include certain types of Myriophyllum and Jungle Vallisneria. Also Soft Hornwort (Ceratophyllum submersum) seems to...

Generally speaking, marshes are lowland areas subject to tidal action, i.e. they become more saline during high tide and less saline during low tide, but they are essentially brackish. That's not to say that these frogs cannot inhabit freshwater. However, the level of osmotic stress, if any...

The article states that their normal environment is the mangrove, i.e. brackish, with excursions into full strength marine.

It depends on the fish. There are some that can tolerate extremes of salinity: https://phys.org/news/2015-01-fish-species-flourish-hypersaline-estuary.html

Has anyone ever kept the Crab-eating frog? https://en.wikipedia.org/wiki/Crab-eating_frog

You keep Pompano in your tank? How big are they? Where did you get them?

Of course, check the salinity The calculations are just a staring point.

15ppt would be 15 grams of salt in 1000 ml volume, i.e. 1 liter You don't really know the total volume in each tank, since some of the space is occupied by substrate, rocks, etc. It is also not filled to the brim. You can guesstimate the volume: 1) 3ft = 91.4 cm 1.5 ft = 45.7 cm 2 ft...