HerCrenVie;1697605; said:
Thought it was unusual. My last large pike - a 10" true Cr. strigata (ID'd by you guys) ate immediately upon introduction. Moreover the previous owner of this Lent said she was a HUUGGE eater and that's evident in her bulk. I don't know the exact temperature but I'd estimate it to be around 26 degrees Celsius. I'm worried. Very.
I'm sure she's just adjusting to her new surroundings but here's a couple of things to try:
1. Turn out the lights. It lets the fish get used to the tank and feel more comfortable. Being under a bright spotlight makes fish nervous, especially in a new tank.
2. Bump the temp up.
3. Find out what foods she is used to.
4. Find out what decor she was raised with. Perhaps adding something to the tank that she is familiar with will make her feel more at home. I notice you have a bare bottom tank. Something as simple as adding gravel can make a difference.
5. Pikes like to be under things. Adding a large floating object can sometimes make a huge difference. A piece of driftwood, a large floating plant (I'd go with plastic), I've even seen a piece of styrofaom used. Ugly but it works. Your fish may feel nervous because it is in a new tank and feels exposed. The floating object will make it feel less exposed.
6. Add some dithers/target fish. Sometimes adding large, mindless fish that are out and about makes the shy fish feel more at ease. Large tinfoil barbs, Leporinus, Silver Dollars, etc.
I really don't think your fish has any physical, health issues. It just needs to settle in and feel comfortable. It's all mental at this point. And no need to panic. Pikes are predators and are built to skip meals.