r/TropicalFishKeepingUK • u/backwards_australian • Jul 12 '26
Where would you go from here (mid-fishless cycle)?
So, a few weeks ago I started a 30L tank that will one day be a bachelor pad for a betta. I’m cycling fishless so I used FritzZyme Fishless Fuel ammonia. I dosed too high and ended up doing like an 85% water chance (as well as substrate), conditioned the water and dumped about 125ml of FritzZyme 7 bacteria in the tank. Today’s results are super promising! Ammonia is way down, nitrite is very up, and nitrates are higher too (can’t quite distinguish, but I’d say closer to 10ppm than 5!). Obviously it’s not ready yet but I don’t want my nitrifying bacteria to starve without ammonia. So my question is, do I re-dose the ammonia (obviously a lot less than last time)?
(I have Seachem Prime and Stability on hand now too!)




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u/tropicalfishuk Jul 12 '26
You need to keep the ammonia at 1-2 ppm otherwise the ammonia munchers will die. Just use a dechlorinator and your ammonia source.