Having a cuke
do a "melt down" is not the only threat from these creatures. If the environment you provide is to their liking, they can also spawn. If a male, you will not have much concern as the sperm is easily removed with skimming and carbon and will not poison the water.
The female is quite the opposite. I learned this one the hard way. Having a sea apple about three years back, she decided to release her eggs into the water column which killed every fish in the tank. When this happens, there is little to nothing that can be done about it.
If you do decide on a cuke
, I would suggest sticking with a tigertail. If the tank size is larger 75+ gal
, there will be much less chance of it nuking the tank and can be helped with a few water changes. Please also be sure the tank is properly mature and stable. Adding them to newer tanks is not advisable due to lack of food and possible poisoning from improper water quality.