Tank set up wise dont put anything dark in there like black background or dark gravel, reason being most discus the reds, yellows and whites are man made colours that have come out of 50 years of breeding, they all have what we call "pigeon" in the strain, in there DNA, add to a dark tank they will "pepper" (develop black freckles) its not a health issue its just cosmetic and ruins the look of the fish, heres a pic of some badly peppered discus. If you dont any unaten food or fish waste will just up the nitrates even regular water changes wont remove it. As you can see a wide ranging tolerance, many say they require low PH and soft water, there talking twaddle, yes to breed in but as a hobbyist it doesnt matter, discus thrive in hard water, Discus eggs wont fertilise in hard water but like i say as a hobbyist it doesnt matter,īack to tank basics keeping an eye in nitrate is something that should be done on a weekly basis there are 3 sourses of nitrate, 1, from the tap as i explained, 2, from over feeding and 3, not cleaning the left over food and fish waste out (main reason), when you do your 30% water changes its essential that you hoover the bottom of the tank, right down to the glass at the bottom. We post our fish all around the country here are the water params our discus will go in, GH 1 to 10, PH 5 to 9, TDS 100 to 900, Ammonia nh4 zero, Nitrite no2 zero and of course Nitrate NO3 less than 30ppm. Water changing wise discus grow and develop better with a more regular water change than standard tropicals, i base mine on around 30% water change every 5 days, change anymore and you will harm your discus through nitrite spikes as the filter stops cycling briefly and harms fish, so on that basis dont leave it 2 weeks in between water changes and change 80% of the water in one go it will poison your fish.
Stock wise we base it on 6 x 3" discus per 100 litres of water, we always recommend adding them all at once, if you dont they may fight
We recommend the API freshwater test kit, its one of the most accurate out on the market (better than the JBL one IMO) available HERE Having a good liquid test kit is part of an essential piece of equipment every discus keeper requires (clear water doesnt mean good water) Forget "test strips" as there absolutely useless and no indication of water quality, if you have any throw them away. Water temp 82/84F or 28/29C make sure thats not too hot for any other tropicals you might have in there Also just to add fast filters tend to be less effective, your tank only needs the water replacing twice per hour so a 400 litre tank only requires around 800 to 1000 litres per hour going round, too fast it slows the cycling and also a fast water flow sometimes can stress discus out making them go off there food etc.
While a filter is "cycling" NEVER water change as all this does is prolonge the time it takes the filter to cycle. WATER PARAMS discus as all tropicals require a good cycling filter, this can take from 5 weeks to 12 weeks depending on the filter type from purchase before the water is fully cycled and discus fish should never be added until this happens. Here are a few things to consider before you purchase. There are a few things to consider before you purchase your discus as they are harder to keep then standard tropicals and require a bit more TLCĭiscus fish are not cheap fish and no one would like to lose them shortly after purchase.
How to Keep Discus Fish How To Keep Discus Fish