Hi! I'm trying to cycle my 33gal tropical freshwater tank by using tetra safe start. I followed the instructions (vague as they were) and today added 3 Zebra Danios. Now I'm sat here looking at how lost and tiny they look in the tank and having doubts, can they be producing enough ammonia for the bacteria in safestart to feed off? I must have spent hours on google looking for answers to this but am getting nowhere! Should I have added more? It just seemed like a big risk to take... Any advice much appreciated!