I cleaned the guppy tank today and removed all decorations to deep vac the substrate. everyone told me my guppies would reproduce and over run my tank. parameters are 0 ammonia,0 nitrites, and 5.0ppm and 10ppm nitrates ph 7.4 heavily planted artiphony (artificial) plants can not see through to back of tank. 4f 1 male. I've had them for 3 months now. how could they eat all the fry when they are fed regularly 2 times a day? removed everything no fry to be found. checked in filter also no fry. now i know they gave birth i was able to catch 6 fry and relocate them to my 55g tank in breeder nets with plants for them to hide in to feel safe 2mths ago. paramiters are almost same but nitrates are solid 10ppm bordering 20ppm. my second question is should i put one of my bettas into the 20g for population control or just let the parents keep eating the fry? Now my betta Jaxon LOVES fast food(fry). he has kept my 55g fry free for over 3.5mths now. oh filters are 2 aquatech 20-40s without carbon and an under gravel filter with a 250gph powerhead to operate UG filter. never enough filtration IMO.