My Oscars!

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Magnus_Bane Magnus_Bane ok my only worries are that it wont evaporate in time before I need to do a wc what if I just dont fill it up all the way and then fill it after like a week?
Sounds like a plan. Lol my water evaporates allot faster just due to there being no lid on the tank. With my 55g it'll drain about 10gs a week just because it ain't got a top on it. Granted with that tank I don't do water changes as often since it's understocked, it gets a water change once every other week. Granted once the angelfish and mollies are put into their own tanks then I could probably dial it back to only once a month.

But yeah I'd say just let the water drain naturally between water changes and once that day comes around just top it off before doing your water change. It won't hurt em any to have the water level drop down a few inches between water changes.
 
I used to do water changes every other both abs the water dropped at least 4 inches between, tank is right by a window. Fish didn’t seem to suffer ill effects, not something I’d recommend though. In the natural dry season oscars would be in ponds without circulation, so technically they are equipped for this.
If it evaporates fast it could work well.
You can maybe try a light with a thunderstorm setting and that may trick them into thinking it’s rainy season?
 
now both of them are working on the nest
View attachment 1454732
Btw if I was you, I would add in a small pile of rocks towards the middle of the tank for incase they do have fry. Atleast then the fry would have a place to hide from the adults if need be. Only problem with that is ya gotta have atleast fist sized rocks so the parents can't move em. Granted that's only advice for once they get past the egg stage.

One idea ya could do for the egg stage atleast is to bury a flat piece of slate rock under the substrate for them to dig up and breed on. If ya can get em used to breeding that way then if ya need to ya can remove the rock from that tank and place it in its own tank. Granted I only use this method as a sort of last resort for parents that just can't seem to get it right. It's a bit trickier to do this just because you need to make sure the parameters match up between the tanks and that ya have an air stone wafting the eggs with freshly oxygenated water but not having air bubbles stick to the eggs, that can dry em out.

Personally I prefer to let the parents try it out for the first 3-4 times before I intervene. Makes things allot easier if the parents will do it all for ya lol.
 
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I used to do water changes every other both abs the water dropped at least 4 inches between, tank is right by a window. Fish didn’t seem to suffer ill effects, not something I’d recommend though. In the natural dry season oscars would be in ponds without circulation, so technically they are equipped for this.
If it evaporates fast it could work well.
You can maybe try a light with a thunderstorm setting and that may trick them into thinking it’s rainy season?
Edit, “every other month and”
 
Deadeye Deadeye I have tried
1. More frequent water changes
2. cooler water
3. Sprinkling them with a watering can ( family thinks Im crazy cause I water m fish lol)
I even tried hooking up a drip system
It might just be my hard water Idk if that would effect the eggs though

Hard water. The TDS is too high. I've read about pleco keepers who breed a certain pleco species, forced to help the fry hatch (after having formed) by breaking the sheath. Their explanation was that the conductivity of the tap water made it difficult for the fry to break free. Just from this the fertilization may be much more difficult as well if the TDS is too high to properly fertilize eggs.

Oscars naturally produce fry in soft water. Start adding distilled water prior to the time that they lay eggs. Get yourself a TDS meter, and make sure that the TDS value of the tank doesn't drop more than 50ppm per day. You'll also have to measure buffering capacity KH, and make sure that it doesn't drop more than 4 degrees.
 
Hey Kelly_Aquatics Kelly_Aquatics ,
You have some very nice looking Oscars. Especially the albino one. They look really healthy. Good luck on your breeding attempts.
 
You may want to try collecting rain water.
It would generally have low TDS, and mixed with tap during water changes, produce a better result.
When I lived in the U.S. I used two rain barrels for fish that needed a lower hardness,
1616178262026.png
The blue one would trap solids and other junk from the roof, and the white would end up catching better quality water.
During a good rain I could easily collect 50 gallons and if mixed with tap, do two 50% water changes of a 100 gal tank, reducing TDS (hardness) by half which worked well enough for the species I had
I would also add leaf litter to the barrels and soak large pieces of wood , intended for tanks, that produced tannins, a very natural part of the seasonal habit of Oscars and other softer water species.
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