The Yucatan molly lives in brackish coastal waters of the Yucatan peninsula and if any livebearer were to require salty hard water it would be this molly. Ensuring appropriate water parameters and environmental requirements is fundamental to reduce tank mortality. When keeping guppies, if you don’t feel the need of breeding, you should keep a population of exclusive females only. It may take longer. Guppies like harder water (10-30 KH). KH raises pH while CO2 lowers it. KH. If you keep your KH near those levels than your pH should be within the proper range for guppies (5.5-8.0 pH). Discussion Starter • #1 • Aug 21, 2007. The higher the KH measurement, the less the pH of the aquarium will fluctuate—and that's best for the fish. The alkalinity or KH is important because this serves to buffer the pH, preventing fluctuations. GH or Total Hardness for guppies is around 200 ppm. PH is effected by two things, KH (carbonate hardness) and carbon dioxide. These fish are native to countries such as Barbados, Brazil, Guyana, Jamaica, the Antilles, Trinidad and Tobago, Antigua, Barbuda, the Virgin Islands, and Venezuela. Guppies are freshwater tropical fish native to South America and are from the Poeciliidae family.. Poecilia wingei (also known as an Endler Guppy) is also part of the Poeciliidae family and is closely related to the common Guppy (Poecilia reticulata).It is the Poecilia reticulatathat we’ll be discussing in this article.. KH or Total Alkalinity for guppies ideally should be around 120-180 ppm. The KH also adds to the total dissolved solids, and these impact fish, but minimally for our purposes here. ... (14 GH, 19 KH) versus soft water (1 GH, 4 KH). This represents the minerals found in the water which helps with general health for your guppies. I would reccommend keeping water in the 10-15 KH range. Hi My KH is measuring 6 and GH is measuring 8. what is the recommendation for guppies and how can i increase it? Doing so would lessen stress and encourage spawning. I've had a hard time keeping livebearers of any kind for many years. Guppies were originally discovered in Venezuela in the mid 1800s, and were regaled for their bright colors and vivacious patterns. The tank is fully cycled, 0 ammonia, o-0.02 nitrite, 0-10 nitrates (the plants keep it at the minimum), GH of 7, KH 4 with heater. There are almost 300 varieties of Guppies. Swordtails can produce 50 – 100 fry every time and may give birth again four to 6 weeks after the first birth. Guppies and Live Bearers. 80 Posts . Other parameters like kH, pH, ammonia, nitrites and nitrates should be checked and kept within safe levels. But if you choose to have both, follow a ratio of 1:2 male to female because male guppies tend to “harass” or annoy female guppies by chasing them too much. Are guppies really that sensitive to low KH?I've been raising guppies for four months now here in the UAE. Freshwater Parameters The following chart provides acceptable water parameter ranges for different types of freshwater aquariums, brackish water aquariums, and ponds.The water parameters listed serve as a general guideline for maintaining each specific type of aquarium or pond. This will help ensure a more stable pH for your tank. Around June, I started with 6 guppies (2 male & 4 females) & 4 cardinal tetras in my 20 litre tank which was heavily planted. GH. Same scales are used, with the same 17.9 calculation, so your 36-37 ppm is about 2 dKH. Nine gallons of water for nine one-inch guppies, and so on. There was no difference in growth rate or mortality in the two groups.